Chronometer

Definitions

A device for measuring time, particularly a precision mechanism for measuring time of day.

Equivalents

Examples

“A wristwatch costs $20; a chronometer costs $20,000.”

“The balances of all moveable time-keepers, the chronometer excepted, are prevented from vibrating beyond the proper arc by what is called bankings. The inferior escapements are very easily banked; a pin fixed in the balance, coming in contact⟳ with one or two studs, is sufficient for that purpose. […]”

“The stock-in-trade of this old gentleman comprised chronometers, barometers, telescopes, compasses, charts, maps, sextants, quadrants, and specimens of every kind of instrument used in the working of a ship's course, or the keeping of a ship's reckoning, or the prosecuting of a ship's discoveries.”

“The sailors sail⟳ by chronometers that do not lose⟳ two or three seconds in a year, ever since [Isaac] Newton explained to Parliament that the way to improve⟳ navigation was to get⟳ good watches, and to offer⟳ public premiums for a better time-keeper than any then in use⟳.”

CEFR level