2. Specifically, one who guards a building, or the streets of
a city, by night.
{Watchman beetle} (Zo["o]l.), the European dor.
{Watchman's clock}, a watchman's detector in which the
apparatus for recording the times of visiting several
stations is contained within a single clock.
{Watchman's detector}, or {Watchman's time detector}, an
apparatus for recording the time when a watchman visits a
station on his rounds.
{Watchman's rattle}, an instrument having at the end of a
handle a revolving arm, which, by the action of a strong
spring upon cogs, produces, when in motion, a loud, harsh,
rattling sound.