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pilus

[pahy-luh s] /ˈpaɪ ləs/
noun, plural pili
[pahy-lahy] /ˈpaɪ laɪ/ (Show IPA).
Biology
1.
a hair or hairlike structure.
Origin
1955-1960
1955-60; < Latin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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pilus in Medicine

pilus pi·lus (pī'ləs)
n. pl. pi·li (-lī')

  1. A hair.

  2. A fine filamentous appendage, somewhat analogous to the flagellum, that occurs on some bacteria. Also called fimbria.

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