limb

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limb

1
1. an arm or leg, or the analogous part on an animal, such as a wing
2. any of the main branches of a tree

limb

2
1. the edge of the apparent disc of the sun, a moon, or a planet
2. Botany
a. the expanded upper part of a bell-shaped corolla
b. the expanded part of a leaf, petal, or sepal
3. either of the two halves of a bow
4. either of the sides of a geological fold
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

limb

(lim) The apparent edge of the Sun, Moon, or a planet, or any other celestial body with a detectable disk.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Limb

 

a flat metal ring divided by lines into equal parts of circumference (for example, degrees or minutes). It is the most important part of instruments used in measuring angles (in astronomy, geodesy, physics, and so on); it gives a reading of the magnitude of the angle. The scale units of a limb are read by means of a vernier or a micrometric microscope.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

limb

[limb]
(anatomy)
An extremity or appendage used for locomotion or prehension, such as an arm or a leg.
(astronomy)
The circular outer edge of a celestial body; the half with the greater altitude is called the upper limb, and the half with the lesser altitude, the lower limb.
(botany)
A large primary tree branch.
(design engineering)
The graduated margin of an arc or circle in an instrument for measuring angles, as that part of a marine sextant carrying the altitude scale.
The graduated staff of a leveling rod.
(geology)
One of the two sections of an anticline or syncline on either side of the axis. Also known as flank.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in classic literature ?
In the mean time I cautiously transferred myself from the limb down which I had been slipping to a couple of others that were near it, deeming two strings to my bow better than one, and taking care to test their strength before I trusted my weight to them.
We finally agreed that Tars Tarkas should return along the branch, leaving his longest leather harness strap with me, and that when the limb had risen to a height that would permit me to enter the cave I was to do so, and on Tars Tarkas' return I could then lower the strap and haul him up to the safety of the ledge.
"Mos feerd for to ventur pon dis limb berry far - tis dead limb putty much all de way."
"Did you say it was a dead limb, Jupiter?" cried Legrand in a quavering voice.
Mought ventur out leetle way pon de limb by myself, dat's true."
Screaming with rage she suddenly charged, leaping high into the air toward Tarzan, but when her huge body struck the limb on which Tarzan had been, Tarzan was no longer there.
I no longer cared to play, but crouched trembling close to my limb. A second arrow and a third soared up, missing Broken-Tooth, rustling the leaves as they passed through, arching in their flight and returning to earth.
Surprised and enraged, the bull clutched madly for support as he toppled sidewise, and then with an agile movement succeeded in projecting himself toward another limb a few feet below.
The bull struck full upon the small of his back across the limb, hung there for a moment with the ape-man still upon his breast, and then toppled over toward the ground.
Even before the rending sound which followed Meriem knew that she had misjudged the strength of the limb. It gave slowly at first.
You got to find out where the shadow of the limb falls at midnight, and that's where you dig!"
Now I will make a jest of thee and a sorry jest withal, for I will quarter thee limb from limb, after thou art hanged." Then he spurred his horse forward and said no more to Stutely.