chronometer

chronometer is defined in Webster's Unabridged Dictionary (1913) with 2 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.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.
  2. 2.(Mus.) A metronome. Box chronometer. See under Box. -- Pocket chronometer, a chronometer in the form of a large watch. -- To rate a chronometer. See Rate, v. t.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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