- blastodisk
- 1. The disk of active cytoplasm at the animal pole of a telolecithal egg. 2. The blastoderm, especially in very young stages when its extent is small.
Medical dictionary. 2011.
blastodisk
Look at other dictionaries:
blastodisk — blȁstodisk m <N mn ovi> DEFINICIJA biol. sloj površinskih stanica u obliku diska na izbrazdanom jajetu, odijeljen od rezervnih tvari šupljinom; javlja se samo kod životinja s mnogo rezervnih tvari u jajetu ETIMOLOGIJA grč. blastós: klica,… … Hrvatski jezični portal
blastodisk — or blastodisc [blas′tōdisk΄, blas′tədisk΄] n. GERMINAL DISK … English World dictionary
blastodisk — /blas teuh disk /, n. Embryol. the blastula that forms as a flattened sphere on top of the yolk in the yolk laden eggs of birds and reptiles. Also, blastodisc. [1885 90; BLASTO + DISK] * * * … Universalium
blastodisk — noun A round, flattened region of cells from which the embryo of many vertebrates begins to develop in the fertilized ovum; a germinal disk … Wiktionary
blastodisk — blas·to·disk … English syllables
blastodisk — blas•to•disk or blas•to•disc [[t]ˈblæs təˌdɪsk[/t]] n. dvl the blastula forming as a flattened sphere on top of the yolk in the eggs of birds and reptiles • Etymology: 1885–90 … From formal English to slang
blastodisk — noun see blastodisc … Useful english dictionary
embryonic disk — em′bryon′ic disk′ n. 1) dvl in the early embryo of mammals, the flattened inner cell mass that arises at the end of the blastocyst stage and from which the embryo begins to differentiate 2) dvl the blastodisk of yolky eggs 3) blastodisk •… … From formal English to slang
germinaldisk — germinal disk n. A flattened, disklike region of cells from which the embryo begins to develop in the fertilized ovum of many vertebrate species. Also called blastodisk, embryonic disk. * * * … Universalium
embryonic disk — Embryol. 1. Also called embryonic shield. in the early embryo of mammals, the flattened inner cell mass that arises at the end of the blastocyst stage and from which the embryo begins to differentiate. 2. the blastodisk of yolky eggs. [1935 40] * … Universalium
