blade

[bleyd]
noun
1.
the flat cutting part of a sword, knife, etc.
2.
a sword, rapier, or the like.
3.
a similar part, as of a mechanism, used for clearing, wiping, scraping, etc.: the blade of a windshield wiper; the blade of a bulldozer.
4.
the arm of a propeller or other similar rotary mechanism, as an electric fan or turbine.
5.
Botany.
a.
the leaf of a plant, especially of a grass or cereal.
b.
the broad part of a leaf, as distinguished from the stalk or petiole. See illus. under leaf.
6.
the metal part of an ice skate that comes into contact with the ice.
7.
a thin, flat part of something, as of an oar or a bone: shoulder blade.
8.
a dashing, swaggering, or jaunty young man: a gay blade from the nearby city.
9.
a swordsman.
10.
Phonetics.
a.
the foremost and most readily flexible portion of the tongue, including the tip and implying the upper and lower surfaces and edges.
b.
the upper surface of the tongue directly behind the tip, lying beneath the alveolar ridge when the tongue is in a resting position.
11.
the elongated hind part of a fowl's single comb.

Origin:
before 1000; Middle English; Old English blæd blade of grass; cognate with Dutch blad, Old Norse blath, German Blatt; akin to blow3

bladeless, adjective
multiblade, noun
unblade, verb (used with object), unbladed, unblading.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
blade (bleɪd)
 
n
1.  the part of a sharp weapon, tool, etc, that forms the cutting edge
2.  (Austral), (NZ) (plural) hand shears used for shearing sheep
3.  the thin flattish part of various tools, implements, etc, as of a propeller, turbine, etc
4.  the flattened expanded part of a leaf, sepal, or petal
5.  the long narrow leaf of a grass or related plant
6.  the striking surface of a bat, club, stick, or oar
7.  the metal runner on an ice skate
8.  archaeol a long thin flake of flint, possibly used as a tool
9.  the upper part of the tongue lying directly behind the tip
10.  archaic a dashing or swaggering young man
11.  short for shoulder blade
12.  sword a poetic word for a swordsman
 
[Old English blæd; related to Old Norse blath leaf, Old High German blat, Latin folium leaf]
 
'bladed
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

blade
O.E. blæd "a leaf," but also "a leaf-like part" (of spade, oar, etc.), from P.Gmc. *bladaz (cf. O.Fris. bled "leaf," Ger. blatt, O.N. blað), from PIE *bhle-to-, suffixed form (p.p.) of *bhel- (3) "to thrive, bloom," possibly identical with *bhel- (2) "to blow, swell" (see
bole). Extended in M.E. to shoulders (c.1300) and swords (early 14c.). The modern use in reference to grass may be a M.E. revival, by influence of O.Fr. bled "corn, wheat" (11c., perhaps from Germanic). The cognate in Ger., blatt, is the general word for "leaf;" laub is used collectively as "foliage." O.N. blað was used in reference to herbs and plants, lauf in reference to trees. This might have been the original distinction in O.E., too.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
blade   (blād)  Pronunciation Key 
    1. The expanded part of a leaf or petal. Also called lamina. See more at leaf.

    2. The leaf of grasses and similar plants.

  1. A stone tool consisting of a slender, sharp-edged, unserrated flake that is at least twice as long as it is wide. Blade tools were developed late in the stone tool tradition, after core and flake tools, and were probably used especially as knives.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang Dictionary

blade definition


  1. n.
    a knife. : Bring your blade over here and cut this loose.
  2. n.
    a young man, witty and worldly. : A couple of blades from the international jet set ordered vintage wine for everyone.
  3. n.
    a homosexual man. (From gay blade.) : Some blade came over and offered to buy me a drink.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
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Easton
Bible Dictionary

Blade definition


applied to the glittering point of a spear (Job 39:23) or sword (Nah. 3:3), the blade of a dagger (Judg. 3:22); the "shoulder blade" (Job 31:22); the "blade" of cereals (Matt. 13:26).

Easton's 1897 Bible Dictionary
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Example sentences
The actual cutting is done between the middle and the heel of the blade, and
  not near the tip.
It also adds a smaller cutting blade and a sturdy corkscrew.
They seemed not to fly so much as scull the air with dark blade wings.
They are foot soldiers, who know they will live by the blade, and die by the
  blade.
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