chief petty officer: Meaning and Definition of

chief' pet'ty of"ficer

Pronunciation: [key]
— U.S. Navy and Coast Guard. U.S. Navy and Coast Guard.
  1. a noncommissioned rank above petty officer first class and below senior petty officer. Abbr.: CPO, C.P.O., c.p.o.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.