any of various devices for a guitar, lute, banjo, etc., that when clamped or screwed down across the strings at a given fret will raise each string a corresponding number of half tones.
ca·po 1 (kā'pō) n.
pl.ca·pos A small movable bar placed across the fingerboard of a guitar or similar instrument so as to raise the pitch of all the strings uniformly.
[Italian capo (di tastiera), head (of the fingerboard), from Latin caput; see kaput- in Indo-European roots.]
ca·po 2 (kä'pō, kāp'ō) n.
pl.ca·pos The head of a branch of an organized crime syndicate.