time ball

time ball
A large wooden or metal ball that drops at a predetermined time to enable sailors to check their marine chronometers from their boats offshore.

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  • Time ball — Time Time, n.; pl. {Times}. [OE. time, AS. t[=i]ma, akin to t[=i]d time, and to Icel. t[=i]mi, Dan. time an hour, Sw. timme. [root]58. See {Tide}, n.] 1. Duration, considered independently of any system of measurement or any employment of terms… …   The Collaborative International Dictionary of English

  • Time ball — A time ball is a large painted wooden or metal ball that drops at a predetermined time, principally to enable sailors to check their marine chronometers. Accurate timekeeping is one way of enabling mariners to determine their longitude at… …   Wikipedia

  • time ball — noun : a large ball on a pole (as at an observatory) that is arranged to drop suddenly to mark a particular hour of day (as noon) * * * time ball noun A ball mounted on a vertical pole, eg on top of a high building, that drops at a regular point… …   Useful english dictionary

  • Time Ball — Boule horaire Pour les articles homonymes, voir boule et horaire. La boule horaire de l Observatoire royal de Gr …   Wikipédia en Français

  • Time ball — Boule horaire Pour les articles homonymes, voir boule et horaire. La boule horaire de l Observatoire royal de Gr …   Wikipédia en Français

  • time-ball — noun a ball that slides down a staff to show a fixed time; especially at an observatory • Hypernyms: ↑ball, ↑globe, ↑orb • Part Holonyms: ↑timepiece, ↑timekeeper, ↑horologe …   Useful english dictionary

  • Time — Time, n.; pl. {Times}. [OE. time, AS. t[=i]ma, akin to t[=i]d time, and to Icel. t[=i]mi, Dan. time an hour, Sw. timme. [root]58. See {Tide}, n.] 1. Duration, considered independently of any system of measurement or any employment of terms which… …   The Collaborative International Dictionary of English

  • Time bargain — Time Time, n.; pl. {Times}. [OE. time, AS. t[=i]ma, akin to t[=i]d time, and to Icel. t[=i]mi, Dan. time an hour, Sw. timme. [root]58. See {Tide}, n.] 1. Duration, considered independently of any system of measurement or any employment of terms… …   The Collaborative International Dictionary of English

  • Time bill — Time Time, n.; pl. {Times}. [OE. time, AS. t[=i]ma, akin to t[=i]d time, and to Icel. t[=i]mi, Dan. time an hour, Sw. timme. [root]58. See {Tide}, n.] 1. Duration, considered independently of any system of measurement or any employment of terms… …   The Collaborative International Dictionary of English

  • Time book — Time Time, n.; pl. {Times}. [OE. time, AS. t[=i]ma, akin to t[=i]d time, and to Icel. t[=i]mi, Dan. time an hour, Sw. timme. [root]58. See {Tide}, n.] 1. Duration, considered independently of any system of measurement or any employment of terms… …   The Collaborative International Dictionary of English

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