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vitellogenesis

[vi-tel-oh-jen-uh-sis, vahy-]
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noun Embryology.
  1. the process by which the yolk is formed and accumulated in the ovum.

Origin of vitellogenesis

First recorded in 1945–50; vitell(us) + -o- + -genesis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018