objective-lens

objective lens

noun Optics.
objective ( def 3 ).
Dictionary.com Unabridged

objective

[uhb-jek-tiv]
noun
1.
something that one's efforts or actions are intended to attain or accomplish; purpose; goal; target: the objective of a military attack; the objective of a fund-raising drive.
2.
Grammar.
a.
Also called objective case. (in English and some other languages) a case specialized for the use of a form as the object of a transitive verb or of a preposition, as him in The boy hit him, or me in He comes to me with his troubles.
b.
a word in that case.
3.
Also called object glass, object lens, objective lens. Optics. (in a telescope, microscope, camera, or other optical system) the lens or combination of lenses that first receives the rays from the object and forms the image in the focal plane of the eyepiece, as in a microscope, or on a plate or screen, as in a camera. See diag. under microscope.
adjective
4.
being the object or goal of one's efforts or actions.
5.
not influenced by personal feelings, interpretations, or prejudice; based on facts; unbiased: an objective opinion.
6.
intent upon or dealing with things external to the mind rather than with thoughts or feelings, as a person or a book.
7.
being the object of perception or thought; belonging to the object of thought rather than to the thinking subject (opposed to subjective ).
8.
of or pertaining to something that can be known, or to something that is an object or a part of an object; existing independent of thought or an observer as part of reality.
9.
Grammar.
a.
pertaining to the use of a form as the object of a transitive verb or of a preposition.
b.
(in English and some other languages) noting the objective case.
c.
similar to such a case in meaning.
d.
(in case grammar) pertaining to the semantic role of a noun phrase that denotes something undergoing a change of state or bearing a neutral relation to the verb, as the rock in The rock moved or in The child threw the rock.
10.
being part of or pertaining to an object to be drawn: an objective plane.
11.
Medicine/Medical. (of a symptom) discernible to others as well as the patient.

Origin:
1610–20; < Medieval Latin objectīvus, equivalent to Latin object(us) (see object) + -īvus -ive

objectively, adverb
objectiveness, noun
preobjective, adjective
quasi-objective, adjective
quasi-objectively, adverb
semiobjective, adjective
semiobjectively, adverb
semiobjectiveness, noun
unobjective, adjective
unobjectively, adverb


1. object, destination, aim. 5. impartial, fair, impersonal, disinterested.


5. personal.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
objective (əbˈdʒɛktɪv)
 
adj
1.  existing independently of perception or an individual's conceptions: are there objective moral values?
2.  undistorted by emotion or personal bias
3.  of or relating to actual and external phenomena as opposed to thoughts, feelings, etc
4.  med (of disease symptoms) perceptible to persons other than the individual affected
5.  grammar See also accusative denoting a case of nouns and pronouns, esp in languages having only two cases, that is used to identify the direct object of a finite verb or preposition and for various other purposes. In English the objective case of pronouns is also used in many elliptical constructions (as in Poor me! Who, him?), as the subject of a gerund (as in It was me helping him), informally as a predicate complement (as in It's me), and in nonstandard use as part of a compound subject (as in John, Larry, and me went fishing)
6.  of, or relating to a goal or aim
 
n
7.  the object of one's endeavours; goal; aim
8.  military Also called: objective point a place or position towards which forces are directed
9.  an actual phenomenon; reality
10.  grammar
 a.  the objective case
 b.  a word or speech element in the objective case
11.  optics Also called: object glass
 a.  the lens or combination of lenses nearest to the object in an optical instrument
 b.  the lens or combination of lenses forming the image in a camera or projector
 
objectival
 
adj
 
ob'jectively
 
adv
 
objec'tivity
 
n
 
ob'jectiveness
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

objective
1610s, originally in the philosophical sense of "considered in relation to its object" (opposite of subjective), formed on pattern of M.L. objectivus, from objectum "object" (see object (n.)). Meaning "impersonal, unbiased" is first found 1855, influenced by Ger. objektiv.
The noun is 1738, with sense of "something objective to the mind;" meaning "goal, aim" is first as a military term from the U.S. War Between the States, 1864 (in objective point), from Fr.; general use of it is first attested 1881.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

objective ob·jec·tive (əb-jěk'tĭv)
n.
The lens or lenses in the lower end of a microscope or other optical instrument that first receives light rays from the object being examined and forms its image. adj.

  1. Based on observable phenomena; presented factually.

  2. Indicating a symptom or condition perceived as a sign of disease by someone other than the person affected.


ob·jec'tive·ness n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
objective   (əb-jěk'tĭv)  Pronunciation Key 
The lens or mirror in a microscope or other optical instrument that first receives light rays from the object and forms the image.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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