pis

Medical Dictionary

pi (pī)
n. pl. pis

Symbol π The 16th letter of the greek alphabet.

American Heritage
Medical Dictionary

pI (pē'ī')
n.
The pH value for the isoelectric point of a given substance in solution.

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