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egg tooth

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
egg tooth
n.
A hard toothlike projection from the beak of embryonic birds, or from the upper jaw of embryonic reptiles, that is used to cut the egg membrane and shell upon hatching and that later falls off.
egg tooth
n
(Life Sciences & Allied Applications / Zoology) (in embryo birds and reptiles) a temporary tooth or (in birds) projection of the beak used for piercing the eggshell
egg tooth
A hard, toothlike projection from the beak of embryonic birds, or from the upper jaw of embryonic reptiles, that is used to cut the egg membrane and shell upon hatching and that later falls off.


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