noun Cell Biology.
the origin and development of the ovum.
Origin of oogenesis
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The formation and the development of the ovum.ovigenesis
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
The formation, development, and maturation of an ovum or egg cell.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.