ferning

ferning definition - medical

fern·ing (fûrˈnĭng)

noun
The formation of a fernlike pattern in a specimen of crystallized cervical mucus secreted at midcycle.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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