fern test

Medical Dictionary

fern test n.
A test for estrogenic activity in which cervical mucus smears form a fernlike pattern at times when estrogen secretion is elevated, as at the time of ovulation.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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