Epibole

/ˈɛpɪboʊl/ noun

Definition

A type of embryonic movement where one layer of cells gradually grows over and covers another layer.

Etymology

From Greek epi- (upon) + ballein (to throw), literally 'throwing upon.' This embryological term describes the physical covering process during development.

Kelly Says

Epibole is like watching a living blanket slowly spread over an embryo—it's how your outer skin layer actually covered the rest of your developing body!

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