lecithin-sphingomyelin ratio

n.

The ratio of lecithin to sphingomyelin present in amniotic fluid, used to determine fetal pulmonary maturity.

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Nearby words

lechuguilla, lechwe, lecithal, lecithic, lecithin, lecithin-sphingomyelin ratio, lecithinase, lecithoblast, lecky, leclair, leclanché cell

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