| 释义 |
ovicell Biol.|ˈəʊvɪsɛl|
[f. ovi-1 + cell, or ad. mod.L. ovicella.]
1. A receptacle for the ova in certain Polyzoa; also called oocyst or oœcium.
1870Rolleston Anim. Life 71 Broad-leafed Hornwrack... The ovicell, a sort of marsupial pouch,..is inconspicuous in this species. 1877Huxley Anat. Inv. Anim. viii. 458 They sometimes..undergo the first stages of their development in dilatations of the wall of the body, termed ovicells.
2. A cell which when impregnated develops into a new individual; an egg-cell; a germ-cell; an ovum or ovule.
1875Huxley & Martin Elem. Biol. (1877) 47 The first product of the germination of the impregnated ovicell is a hypha-like body, from which the young Chara is developed. 1892Syd. S.L., Ovicell, the one-celled Mammalian ovum.
Hence oviˈcellular a., pertaining to an ovicell.
1890in Cent. Dict. |