| 释义 |
meroblast Biol.|ˈmɛrəʊblæst|
[f. mero-1 + Gr. βλαστός germ, -blast.]
An ovum which is only partly germinal. Hence meroˈblastic a., having only a partial power of germination. (Opposed to holoblast, -ic.)
1870Nicholson Man. Zool. 193 The ovum is ‘meroblastic’, a portion only of the vitellus undergoing segmentation. 1884Caldwell in Australasian Suppl. 8 Nov. 3/3 Monotremes oviparous, meroblast ovum. 1888Rolleston & Jackson Anim. Life 371 Monotremata... The ova are large and meroblastic. |