egg

from The American Heritage® Dictionary of the English Language, 5th Edition.

• transitive verb To encourage or incite to action. Used with on:
• noun A female gamete; an ovum.
• noun The round or oval female reproductive body of various animals, including birds, reptiles, amphibians, fishes, and insects, consisting usually of an embryo surrounded by nutrient material and a protective covering.
• noun The oval, thin-shelled reproductive body of a bird, especially that of a hen, used as food.
• noun Something having the ovoid shape of an egg.
• noun Slang A fellow; a person.
• transitive verb To cover with beaten egg, as in cooking.
• transitive verb Slang To throw eggs at.
• idiom (egg on (one's) face) Embarrassment; humiliation.
• idiom (lay an egg) To fail, especially in a public performance.
• idiom (put/have) To risk everything on a single venture.

from The Century Dictionary.

• noun In cricket, no score; zero; a duck's egg.
• To incite or urge; encourage; instigate; provoke: now nearly always with on.
• To apply eggs to; cover or mix with eggs, as cutlets, fish, bread, etc., in cooking.
• To pelt with eggs.
• noun The body formed in the females of all animals (with the exception of a few of the lowest type, which are reproduced by gemmation or division), in which, by impregnation, the development of the fetus takes place; an ovum, ovule, or egg-cell; the procreative product of the female, corresponding to the sperm, sperm-cell, or spermatozoön of the male.
• noun Something like or likened to an egg in shape.
• noun [The egg was used by the early Christians as a symbol of the hope of the resurrection. The use of eggs at Easter has, doubtless, reference to the same idea. Eggs of marble have been found in the tombs of early Christians.]

from the GNU version of the Collaborative International Dictionary of English.

• noun (Popularly) The oval or roundish body laid by domestic poultry and other birds, tortoises, etc. It consists of a yolk, usually surrounded by the “white” or albumen, and inclosed in a shell or strong membrane.
• noun (Biol.) A simple cell, from the development of which the young of animals are formed; ovum; germ cell.
• noun Anything resembling an egg in form.
• noun (Arch.) see egg-and-dart in the vocabulary, below; -- called also egg and dart, and egg and tongue. See Anchor, n., 5.
• noun (Biol.) a process of cleavage or segmentation, by which the egg undergoes endogenous division with formation of a mass of nearly similar cells, from the growth and differentiation of which the new organism is ultimately formed. See Segmentation of the ovum, under Segmentation.
• noun (Biol.) the process of the development of an egg, by which the embryo is formed.
• noun (Zoöl.) any mite which devours the eggs of insects, as Nothrus ovivorus, which destroys those of the canker worm.
• noun (Zoöl.) any small hymenopterous insect, which, in the larval stage, lives within the eggs of other insects. Many genera and species are known.
• transitive verb To urge on; to instigate; to incite�

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb To encourage, incite.
• noun zoology, countable An approximately spherical or ellipsoidal body produced by birds, snakes, insects and other animals housing the embryo during its development.
• noun countable The egg of a domestic fowl as an item of food.
• noun uncountable The contents of one or more (hen's usually) eggs as a culinary ingredient, etc.
• noun biology, countable The female primary cell, the ovum.
• noun Something shaped like an egg, such as an Easter egg or a chocolate egg.
• noun A swelling on one's head, usually large or noticeable, associated with an injury.
• noun mildly pejorative, slang, ethnic slur , (potentially offensive) A person of Caucasian (Western) ancestry, who has a strong desire to learn about and immerse him- or herself in East Asian culture, and/or such a person who is perceived as behaving as if he or she were Asian (from the "white" outside and "yellow" inside).
• noun New Zealand (pejorative) A foolish or obnoxious person.
• noun In terms such as good egg, bad egg, tough egg etc., a person, fellow.
• verb To throw eggs at.
• verb To dip in or coat with beaten egg (cooking).
• verb To distort a circular cross-section (as in a tube) to an elliptical or oval shape, either inadvertently or intentionally.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun one of the two male reproductive glands that produce spermatozoa and secrete androgens
• noun oval reproductive body of a fowl (especially a hen) used as food
• noun animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes; especially the thin-shelled reproductive body laid by e.g. female birds
• verb throw eggs at
• verb coat with beaten egg