英语词汇“egg-burster”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

egg-burster n. a thickened area on an embryonic insect helping it to burst the egg membranes when hatching.

ΚΠ

1920 Brit. Museum Return 121 The Egg-burster of Encephalous Fly-larvæ.

1953 New Biology XIV. 116 There are three larval stages in most species [of fleas], two in a few, very alike except in size and in the presence of a conical egg-burster on the top of the head of those of the first stage.

1959 T. R. E. Southwood & D. Leston Land & Water Bugs Brit. Isles 411 Egg-burster, a thickened, often sclerotized, usually Y- or T-shaped area on the vertex of the embryonic cuticle; it bears a tooth and its movement is considered to help in rupturing the chorion and egg membranes.

单词	egg-burster
释义	> as lemmas egg-burster egg-burster n. a thickened area on an embryonic insect helping it to burst the egg membranes when hatching. ΚΠ 1920 Brit. Museum Return 121 The Egg-burster of Encephalous Fly-larvæ. 1953 New Biology XIV. 116 There are three larval stages in most species [of fleas], two in a few, very alike except in size and in the presence of a conical egg-burster on the top of the head of those of the first stage. 1959 T. R. E. Southwood & D. Leston Land & Water Bugs Brit. Isles 411 Egg-burster, a thickened, often sclerotized, usually Y- or T-shaped area on the vertex of the embryonic cuticle; it bears a tooth and its movement is considered to help in rupturing the chorion and egg membranes. extracted from eggn. < as lemmas
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> as lemmas