blastodisc

noun
blas·to·disc | \ˈbla-stə-ˌdisk \

Definition of blastodisc 

: the embryo-forming portion of an egg with discoidal cleavage usually appearing as a small disc on the upper surface of the yolk mass — see egg illustration

First Known Use of blastodisc

1878, in the meaning defined above

History and Etymology for blastodisc

blasto- + disc

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Last Updated

21 Aug 2018

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The first known use of blastodisc was in 1878

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More Definitions for blastodisc

blastodisc

noun
blas·to·disc
variants: or blastodisk \ˈblas-tə-ˌdisk \

Medical Definition of blastodisc 

: the embryo-forming portion of an egg with discoidal cleavage usually appearing as a small disc on the upper surface of the yolk mass

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