pen|du|lum «PEHN juh luhm, -dyuh-», noun.
a weight so hung from a fixed point that it is free to swing to and fro. It moves through a regular arc under the influence of gravity. The movement of the works of a tall clock is often timed by a pendulum. »

The utility of the pendulum as a timekeeper is based on the fact that the period is practically independent of the amplitude (Sears and Zemansky).

[< New Latin pendulum, (literally) neuter of Latin pendulus pendulous]

Useful english dictionary. 2012.

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  • pen·du·lum — /ˈpɛnʤələm/ noun, pl lums [count] : a stick with a weight at the bottom that swings back and forth inside a clock often used figuratively The fashion pendulum swung from silver jewelry to gold and back again. [=silver jewelry was popular for a… …   Useful english dictionary

  • lum — ac·e·tab·u·lum; acic·u·lum; am·y·lum; an·te·bel·lum; an·te·o·per·cu·lum; as·co·phyl·lum; as·per·gil·lum; asy·lum; bac·u·lum; bel·lum; blaf·lum; blel·lum; bol·bo·phyl·lum; brach·y·phyl·lum; cal·o·phyl·lum; ca·lum·ba; ca·lum·ni·ate;… …   English syllables

  • lum|pen|pro|le|tar|i|at — «LUM puhn PROH luh TAIR ee uht», noun. the section of the proletariat that lacks class consciousness: »These are not the real working class. These are the lumpenproletariat, tainted by petty bourgeois ideology (New Yorker). ╂[< German… …   Useful english dictionary

  • lum|pen — «LUM puhn», adjective. lacking class consciousness: »a lumpen intellectual. When it comes to voting time…the lumpen aristocracy, too, just shuffle mindlessly past the ballot box (Punch). ╂[back formation < lumpenproletariat] …   Useful english dictionary

  • pendulum — pen·du·lum …   English syllables

  • pendulum — pen•du•lum [[t]ˈpɛn dʒə ləm, ˈpɛn dyə , də [/t]] n. 1) mec a body so suspended from a fixed point as to move to and fro by the action of gravity and acquired momentum 2) hor a swinging lever, weighted at the lower end, for regulating the speed of …   From formal English to slang

  • pendulum — pen|du|lum [ˈpendjuləm US dʒə ] n [Date: 1600 1700; : Modern Latin; Origin: Latin pendulus; PENDULOUS] 1.) a long metal stick with a weight at the bottom that swings regularly from side to side to control the working of a clock 2.) the pendulum… …   Dictionary of contemporary English

  • pendulum — pen|du|lum [ pendʒələm ] noun 1. ) count a long thin bar with a weight at the lower end that swings from side to side, usually in order to keep a clock working 2. ) the pendulum (of sth) used for talking about the tendency of an opinion or… …   Usage of the words and phrases in modern English

  • du — ab·du·cens; ab·du·cent; ac·i·du·ric; ad·du·cent; an·tho·me·du·sae; ar·du·i·nite; ar·du·ous; ar·du·ous·ly; ar·du·ous·ness; as·si·du·i·ty; au·du·bon s; ban·du·ra; bar·on·du·ki; be·du; bol·du; bu·du·kha; bu·du·ma; ca·du·ca·ry; ca·du·ce·an;… …   English syllables

  • Ballistic pendulum — Pendulum Pen du*lum, n.; pl. {Pendulums}. [NL., fr. L. pendulus hanging, swinging. See {Pendulous}.] A body so suspended from a fixed point as to swing freely to and fro by the alternate action of gravity and momentum. It is used to regulate the… …   The Collaborative International Dictionary of English

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