|Easton's Bible Dictionary|
(Hebrews beytsah, "whiteness"). Eggs deserted (Isaiah 10:14), of a bird (Deuteronomy 22:6), an ostrich (Job 39:14), the cockatrice (Isaiah 59:5). In Luke 11:12, an egg is contrasted with a scorpion, which is said to be very like an egg in its appearance, so much so as to be with difficulty at times distinguished from it. In Job 6:6 ("the white of an egg") the word for egg (hallamuth') occurs nowhere else. It has been translated "purslain" (R.V. marg.), and the whole phrase "purslain-broth", i.e., broth made of that herb, proverbial for its insipidity; and hence an insipid discourse. Job applies this expression to the speech of Eliphaz as being insipid and dull. But the common rendering, "the white of an egg", may be satisfactorily maintained.
Noah Webster's Dictionary
1. (n.) 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 enclosed in a shell or strong membrane.
2. (n.) A simple cell, from the development of which the young of animals are formed; ovum; germ cell.
3. (n.) Anything resembling an egg in form.
4. (v. t.) To urge on; to instigate; to incite/
Int. Standard Bible Encyclopedia
(betsah; oon; Latin ovum):
An oval or spheroid body produced by birds, fishes and reptiles, from which their young emerge when incubated or naturally developed. The fertile egg of a bird consists of the yolk, a small disk from which the embryo develops, the albuminous white, and a calcareous shell. The most ancient records prove that eggs have been used as an article of diet ever since the use of the flesh of fowl began. Chickens were unknown in Palestine in the days of Job, so that his query concerning the taste of the white of an egg might have referred to those of pigeons, ducks, eggs taken from the nests of geese or swans, game birds or ostriches. "Can that which hath no savor be eaten without salt? Or is there any taste in the white of an egg?" (Job 6:6, the Revised Version, margin "the juice of purslain"). In Luke 11:12 there is every possibility that the egg of our common domestic fowl is referred to as "chickens" (which see) had been imported and were numerous in Palestine at that time. "Or if he shall ask an egg, will he give him a scorpion?" The reference in Isaiah 59:5 is to the egg of a serpent, and is figurative of the schemes of evil men: "They hatch adders' eggs, and weave the spider's web: he that eateth of their eggs dieth; and that which is crushed breaketh out into a viper."
Egg (3 Occurrences)
Luke 11:12 Or if he asks for an egg, he won't give him a scorpion, will he? (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV NIV)
Job 6:6 Can that which has no flavor be eaten without salt? Or is there any taste in the white of an egg? (WEB KJV ASV DBY WBS NAS NIV)
Isaiah 59:5 They hatch adders' eggs, and weave the spider's web: he who eats of their eggs dies; and that which is crushed breaks out into a viper. (Root in WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)