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blastula

(blas′tyo̵̅o̅ lə)

an embryo at the stage of development in which it consists of usually one layer of cells around a central cavity, forming a hollow sphere

Origin: ModL, dim. < Gr blastos, a sprout

Related Forms:

blastular adjective
blastulation noun

See blastula in American Heritage Dictionary 4

noun pl. blas·tu·las or blas·tu·lae (-lēˌ)

An early embryonic form produced by cleavage of a fertilized ovum and consisting of a spherical layer of cells surrounding a fluid-filled cavity. Also called blastosphere.

Origin:

Origin: New Latin

Origin: : from Greek blastos, bud

Origin: + Latin -ula, feminine diminutive suffix

Related Forms:

blasˈtu·lar adjective

blasˌtu·laˈtion (-lāˈshən) noun

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