base on

base

1 [beys] noun, adjective, verb, based, bas·ing.
noun
1.
the bottom support of anything; that on which a thing stands or rests: a metal base for the table.
2.
a fundamental principle or groundwork; foundation; basis: the base of needed reforms.
3.
the bottom layer or coating, as of makeup or paint.
4.
Architecture.
a.
the distinctively treated portion of a column or pier below the shaft or shafts. See diag. under column.
b.
the distinctively treated lowermost portion of any construction, as a monument, exterior wall, etc.
5.
Botany, Zoology.
a.
the part of an organ nearest its point of attachment.
b.
the point of attachment.
6.
the principal element or ingredient of anything, considered as its fundamental part: face cream with a lanolin base; paint with a lead base.
7.
that from which a commencement, as of action or reckoning, is made; a starting point or point of departure.
8.
Baseball.
a.
any of the four corners of the diamond, especially first, second, or third base. Compare home plate.
b.
a square canvas sack containing sawdust or some other light material, for marking first, second, or third base.
9.
a starting line or point for runners, racing cars, etc.
10.
(in hockey and other games) the goal.
11.
Military.
a.
a fortified or more or less protected area or place from which the operations of an army or an air force proceed.
b.
a supply installation for a large military force.
12.
Geometry. the line or surface forming the part of a figure that is most nearly horizontal or on which it is supposed to stand.
13.
Mathematics.
a.
the number that serves as a starting point for a logarithmic or other numerical system.
b.
a collection of subsets of a topological space having the property that every open set in the given topology can be written as the union of sets of the collection.
c.
a collection of neighborhoods of a point such that every neighborhood of the point contains one from the collection.
d.
a collection of sets of a given filter such that every set in the filter is contained in some set in the collection.
14.
Also called base line. Surveying, See under triangulation ( def 1 ).
15.
Painting.
a.
vehicle ( def 10 ).
b.
Also called carrier. inert matter, used in the preparation of lakes, onto which a coloring compound is precipitated.
16.
Photography. a thin, flexible layer of cellulose triacetate or similar material that holds the light-sensitive film emulsion and other coatings, especially on motion-picture film.
17.
Chemistry.
a.
a compound that reacts with an acid to form a salt, as ammonia, calcium hydroxide, or certain nitrogen-containing organic compounds.
b.
the hydroxide of a metal or of an electropositive element or group.
c.
a group or molecule that takes up or accepts protons.
d.
a molecule or ion containing an atom with a free pair of electrons that can be donated to an acid; an electron-pair donor.
e.
any of the purine and pyrimidine compounds found in nucleic acids: the purines adenine and guanine and the pyrimidines cytosine, thymine, and uracil.
18.
Grammar. the part of a complex word, consisting of one or more morphemes, to which derivational or inflectional affixes may be added, as want in unwanted or biolog- in biological. Compare root1 ( def 12 ), stem1 ( def 16 ).
19.
Linguistics. the component of a generative grammar containing the lexicon and phrase-structure rules that generate the deep structure of sentences.
20.
Electronics.
a.
an electrode or terminal on a transistor other than the emitter or collector electrodes or terminals.
b.
the part of an incandescent lamp or electron tube that includes the terminals for making electrical connection to a circuit or power supply.
21.
Stock Exchange. the level at which a security ceases a decline in price.
22.
Heraldry. the lower part of an escutcheon.
23.
bases, Armor. a tonlet formed of two shaped steel plates assembled side by side.
24.
Jewelry. pavilion ( def 6 ).
25.
in base, Heraldry. in the lower part of an escutcheon.
adjective
26.
serving as or forming a base: The walls will need a base coat and two finishing coats.
00:10
Base on is always a great word to know.
So is gobo. Does it mean:
a scrap or morsel of food left at a meal.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
LEARN MORE UNUSUAL WORDS WITH WORD DYNAMO...
verb (used with object)
27.
to make or form a base or foundation for.
28.
to establish, as a fact or conclusion (usually followed by on or upon ): He based his assumption of her guilt on the fact that she had no alibi.
29.
to place or establish on a base or basis; ground; found (usually followed by on or upon ): Our plan is based on a rising economy.
30.
to station, place, or situate (usually followed by at or on ): He is based at Fort Benning. The squadron is based on a carrier.
verb (used without object)
31.
to have a basis; be based (usually followed by on or upon ): Fluctuating prices usually base on a fickle public's demand.
32.
to have or maintain a base: I believe they had based on Greenland at one time.
Idioms
33.
get to first base. first base ( def 2 ).
34.
off base,
a.
Baseball. not touching a base: The pitcher caught him off base and, after a quick throw, he was put out by the second baseman.
b.
Informal. badly mistaken: The police were way off base when they tried to accuse her of the theft.
35.
on base, Baseball. having reached a base or bases: Two men are on base.
36.
touch base with, to make contact with: They've touched base with every political group on campus.
Origin:
1275–1325; Middle English (noun) < Middle French < Latin basis basis; cf. prisoner's base

Related forms
un·based, adjective
well-based, adjective

Synonyms
1. Base, basis, foundation refer to anything upon which a structure is built and upon which it rests. Base usually refers to a literal supporting structure: the base of a statue. Basis more often refers to a figurative support: the basis of a report. Foundation implies a solid, secure understructure: the foundation of a skyscraper or a rumor.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
base1 (beɪs) [Click for IPA pronunciation guide]
 
—n
1.  the bottom or supporting part of anything
2.  the fundamental or underlying principle or part, as of an idea, system, or organization; basis
3.  a.  a centre of operations, organization, or supply: the climbers made a base at 8000 feet
 b.  (as modifier): base camp
4.  a centre from which military activities are coordinated
5.  anything from which a process, as of measurement, action, or thought, is or may be begun; starting point: the new discovery became the base for further research
6.  the main ingredient of a mixture: to use rice as a base in cookery
7.  See also Lewis base a chemical compound that combines with an acid to form a salt and water. A solution of a base in water turns litmus paper blue, produces hydroxyl ions, and has a pH greater than 7. Bases are metal oxides or hydroxides or amines
8.  biochem any of the nitrogen-containing constituents of nucleic acids: adenine, thymine (in DNA), uracil (in RNA), guanine, or cytosine
9.  a medium such as oil or water in which the pigment is dispersed in paints, inks, etc; vehicle
10.  the inorganic material on which the dye is absorbed in lake pigments; carrier
11.  biology
 a.  the part of an organ nearest to its point of attachment
 b.  the point of attachment of an organ or part
12.  the bottommost layer or part of anything
13.  architect
 a.  the lowest division of a building or structure
 b.  the lower part of a column or pier
14.  another word for baseline
15.  the lower side or face of a geometric construction
16.  maths
 a.  See place-value the number of distinct single-digit numbers in a counting system, and so the number represented as 10 in a place-value system: the binary system has two digits, 0 and 1, and 10 to base two represents 2
 b.  (of a logarithm or exponential) the number whose powers are expressed: since 1000 = 10³, the logarithm of 1000 to base 10 is 3
 c.  (of a mathematical structure) a substructure from which the given system can be generated
 d.  the initial instance from which a generalization is proven by mathematical induction
17.  logic, maths Also called: base clause the initial element of a recursive definition, that defines the first element of the infinite sequence generated thereby
18.  linguistics
 a.  a root or stem
 b.  See base component
19.  electronics the region in a transistor between the emitter and collector
20.  photog the glass, paper, or cellulose-ester film that supports the sensitized emulsion with which it is coated
21.  heraldry the lower part of the shield
22.  jewellery the quality factor used in pricing natural pearls
23.  a starting or finishing point in any of various games
24.  baseball any of the four corners of the diamond, which runners have to reach in order to score
25.  the main source of a certain commodity or element: a customer base; their fan base
26.  informal (US), (Canadian) get to first base to accomplish the first stage in a project or a series of objectives
27.  informal (US), (Canadian) off base wrong or badly mistaken
28.  touch base to make contact
 
—vb (often foll by at or in)
29.  (tr foll by on or upon) to use as a basis (for); found (on): your criticisms are based on ignorance
30.  to station, post, or place (a person or oneself)
 
[C14: from Old French, from Latin basis pedestal; see basis]

base2 (beɪs) [Click for IPA pronunciation guide]
 
—adj
1.  devoid of honour or morality; ignoble; contemptible
2.  of inferior quality or value
3.  debased; alloyed; counterfeit: base currency
4.  English history
 a.  (of land tenure) held by villein or other ignoble service
 b.  holding land by villein or other ignoble service
5.  archaic born of humble parents; plebeian
6.  archaic illegitimate
 
—adj, —n
7.  music an obsolete spelling of bass
 
[C14: from Old French bas, from Late Latin bassus of low height, perhaps from Greek bassōn deeper]
 
'basely2
 
—adv
 
'baseness2
 
—n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

base
"bottom, foundation, pedestal," early 14c., from O.Fr. bas "depth" (12c.), from L. basis "foundation," from Gk. basis "step, pedestal," from bainein "to step" (see come). The military sense is from 1860. The chemical sense (1810) was introduced in French 1754 by Fr. chemist
Guillaume-François Rouelle (1703-1770). The verb meaning "to place on a foundation" is from 1841.

base
late 14c., from O.Fr. bas (Mod.Fr. bas) "low, lowly, mean," from L.L. bassus "thick, stumpy, low" (used only as a cognomen in classical Latin, humilis being there the usual word for "low in stature or position"), possibly from Oscan, or Celtic, or related to Gk. basson, comparative of bathys "deep."
Figurative sense of "low in the moral scale" is first attested 1530s in English, earlier "servile" (1520s). Base metals (c.1600) were worthless in contrast to noble or precious metals.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

base (bās)
n.

  1. The part of an organ nearest its point of attachment.

  2. A fundamental ingredient; a chief constituent of a mixture.

  3. Any of a large class of compounds, including the hydroxides and oxides of metals, having a bitter taste, a slippery solution, the capacity to turn litmus blue, and to react with acids to form salts.

  4. A molecular or ionic substance capable of combining with a proton to form a new substance. Also called Brønsted base.

  5. A nitrogen-containing organic compound that combines in such a manner.

  6. A substance that provides a pair of electrons for a covalent bond with an acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
base   (bās)  Pronunciation Key 

  1. Chemistry

    1. Any of a class of compounds that form hydroxyl ions (OH) when dissolved in water, and whose aqueous solutions react with acids to form salts. Bases turn red litmus paper blue and have a pH greater than 7. Their aqueous solutions have a bitter taste. Compare acid.

    2. See nitrogen base.

    3. The side or face of a geometric figure to which an altitude is or is thought to be drawn. The base can be, but is not always, the bottom part of the figure.

    4. The number that is raised to various powers to generate the principal counting units of a number system. The base of the decimal system, for example, is 10.

    5. The number that is raised to a particular power in a given mathematical expression. In the expression an, a is the base.

  2. Mathematics

    1. The side or face of a geometric figure to which an altitude is or is thought to be drawn. The base can be, but is not always, the bottom part of the figure.

    2. The number that is raised to various powers to generate the principal counting units of a number system. The base of the decimal system, for example, is 10.

    3. The number that is raised to a particular power in a given mathematical expression. In the expression an, a is the base.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
American Heritage
Cultural Dictionary

base definition


Any of a number of bitter-tasting, caustic materials. Technically, a material that produces negative ions in solution. A base is the opposite of an acid and has a pH of 7 to 14. A given amount of a base added to the same amount of an acid neutralizes the acid; water and a salt are produced. Alkalis are bases; ammonia is a common base.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Slang Dictionary

base definition


  1. mod.
    rude; gross. (California.) : You are so, like, base!
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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