| blastospore | Synonym: Blastoconidium. Origin: blasto-+ G. Sporos, seed (05 Mar 2000) |
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| blastostyle | <zoology> In certain hydroids, an imperfect zooid, whose special function is to produce medusoid buds. See Hydroidea, and Athecata. Origin: Gr. Sprout, bud + a pillar. Source: Websters Dictionary (01 Mar 1998) |
| blastotomy | Experimental destruction of one or more blastomeres. Synonym: blastomerotomy. Origin: blasto-+ G. Tome, incision (05 Mar 2000) |
| blasts | Immature blood cells. (12 Dec 1998) |
| blastula | <embryology> Stage of embryonic development of animals near the end of cleavage but before gastrulation. In animals where cleavage (cell division) involves the whole egg, the blastula usually consists of a hollow ball of cells. (18 Nov 1997) |
| blastular | Pertaining to the blastula. (05 Mar 2000) |
| blastulation | Formation of the blastula or blastocyst from the morula. (05 Mar 2000) |
| blastule | <biology> Same as Blastula. Source: Websters Dictionary (01 Mar 1998) |