primitive groove

noun

: a depression or groove in the epiblast of the primitive streak that extends forward to the primitive knot

Dictionary Entries Near primitive groove

Cite this Entry

“Primitive groove.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/primitive%20groove. Accessed 18 Apr. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!