Medical Dictionary

picometer pi·co·me·ter (pē'kə-mē'tər, pī'-)
Abbr. pm
One-trillionth (10-12) of a meter.

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