Wordnet 3.0
NOUN (1)
1.
an accurate clock (especially used in navigation);
The Collaborative International Dictionary of English v.0.48:
Chronometer \Chro*nom"e*ter\, n. [Gr. ? time + -meter: cf. F.
chronom[`e]tre.]
1. An instrument for measuring time; a timekeeper.
[1913 Webster]
2. A portable timekeeper, with a heavy compensation balance,
and usually beating half seconds; -- intended to keep time
with great accuracy for use an astronomical observations,
in determining longitude, etc.
[1913 Webster]
3. (Mus.) A metronome.
[1913 Webster]
Box chronometer. See under Box.
Pocket chronometer, a chronometer in the form of a large
watch.
To rate a chronometer. See Rate, v. t.
[1913 Webster] Chronometric
WordNet (r) 3.0 (2006):
chronometer
n 1: an accurate clock (especially used in navigation)
Moby Thesaurus II by Grady Ward, 1.0:
32 Moby Thesaurus words for "chronometer":
Big Ben, astronavigation, celestial navigation, clock,
clock movement, clockworks, coastwise navigation, consolan,
dead reckoning, fix, horologe, horologium, line of position, loran,
pilotage, plane sailing, point-to-point navigation, radar,
radio beacon, radio navigation, sextant, shoran, sofar, sonar,
tables, ticker, timekeeper, timepiece, timer, turnip, watch,
watchworks