eggn.[OE., fr. Icel. egg; akin to AS. g (whence OE. ey), Sw. gg, Dan. g, G. & D. ei, and prob. to OSlav. aje, jaje, L. ovum, Gr. 'w,o`n, Ir. ugh, Gael. ubh, and perh. to L. avis bird. Cf. Oval.]1. (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.()2. (Biol.) A simple cell, from the development of which the young of animals are formed; ovum; germ cell.()3. Anything resembling an egg in form.()()Egg and anchor (Arch.), see egg-and-dart in the vocabulary, below; -- called also egg and dart, and egg and tongue. See Anchor, n., 5. Ogilvie. -- Egg cleavage (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. -- Egg development (Biol.), the process of the development of an egg, by which the embryo is formed. -- Egg mite (Zol.), any mite which devours the eggs of insects, as Nothrus ovivorus, which destroys those of the canker worm. -- Egg parasite (Zol.), any small hymenopterous insect, which, in the larval stage, lives within the eggs of other insects. Many genera and species are known.()v. t.[OE. eggen, Icel. eggja, fr. egg edge. . See Edge.] To urge on; to instigate; to incite()Adam and Eve he egged to ill. (Piers Plowman.)[She] did egg him on to tell
How fair she was. (Warner.)