blasto- /blas-tō-/ (biology, esp embryology)

Denoting sprout, bud, germ

blasˈtocoel or blasˈtocoele /-sēl/ noun

The cavity inside a blastula

blasˈtocyst noun

The blastula in mammals

blasˈtoderm noun (Gr derma skin; embryology)

The layer or layers of cells arising from the germinal disc, or the portion of a partially segmenting egg which undergoes division

blastogenesis /-jenˈ/ noun

1. Transmission of hereditary characteristics by the germ-plasm
2. Reproduction by budding

blastogenˈic adjective

Relating to the germ-plasm

blastˈoid adjective and noun

Blastoidˈea plural noun

(Gr eidos form) a group of bud-like calcareous fossil echinoderms

blastōˈma noun (pl blastōˈmas or blastōˈmata) (pathology)

A neoplasm composed of immature cells

blasˈtomere noun

(Gr meros part) one of the cells formed in an early stage of the cleavage of a fertilized ovum

blasˈtopore noun

(Gr poros a passage) the orifice of a gastrula

blasˈtosphere noun

(Gr sphaira a sphere) a blastula

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