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penduline | pendulosity | pendulous | pendulously | pendulousness | pendulum | pendulum clock | pendulum watch | peneidae | penelope | peneplain





pendulumn. [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 movements of clockwork and other machinery.  [1913 Webster]
    " The time of oscillation of a pendulum is independent of the arc of vibration, provided this arc be small."  [1913 Webster]
Ballistic pendulum. See under Ballistic. -- Compensation pendulum, a clock pendulum in which the effect of changes of temperature of the length of the rod is so counteracted, usually by the opposite expansion of differene metals, that the distance of the center of oscillation from the center of suspension remains invariable; as, the mercurial compensation pendulum, in which the expansion of the rod is compensated by the opposite expansion of mercury in a jar constituting the bob; the gridiron pendulum, in which compensation is effected by the opposite expansion of sets of rods of different metals. -- Compound pendulum, an ordinary pendulum; -- so called, as being made up of different parts, and contrasted with simple pendulum. -- Conical pendulum or Revolving pendulum, a weight connected by a rod with a fixed point; and revolving in a horizontal circle about the vertical from that point. -- Pendulum bob, the weight at the lower end of a pendulum. -- Pendulum level, a plumb level. See under Level. -- Pendulum wheel, the balance of a watch. -- Simple pendulum or Theoretical pendulum, an imaginary pendulum having no dimensions except length, and no weight except at the center of oscillation; in other words, a material point suspended by an ideal line.


pendulum, n. a weight suspended so as to swing freely, esp. a rod with a weighted end regulating the movement of a clock's works.

swing of the pendulum the tendency of public opinion to oscillate between extremes, esp. between political parties.
L neut. adj. (as PENDULOUS)



Indian file, array, articulation, bank, buzz, catena, catenation, chain, chain reaction, chaining, concatenation, connection, consecution, continuum, course, cycle, descent, drone, endless belt, endless round, file, filiation, gamut, gradation, hum, line, lineage, metronome, monotone, nexus, oscillator, periodicity, plenum, powder train, progression, queue, range, rank, recurrence, reticulation, rocker, rocking chair, rocking stone, rotation, round, routine, row, run, scale, seesaw, sequence, series, shuttle, shuttlecock, single file, spectrum, string, succession, swath, swing, teeter, teeter-totter, teeterboard, teetery-bender, thread, tier, train, vibrator, windrow




N chronometry, horometry, horology, date, epoch, style, era, almanac, calendar, ephemeris, register, registry, chronicle, annals, journal, diary, chronogram, clock, wall clock, pendulum clock, grandfather's clock, cuckoo clock, alarm clock, clock radio, watch, wristwatch, pocket watch, stopwatch, Swiss watch, atomic clock, digital clock, analog clock, quartz watch, water clock, chronometer, chronoscope, chronograph, repeater, timekeeper, timepiece, dial, sundial, gnomon, horologe, pendulum, hourglass, clepsydra, ghurry, chronographer, chronologer, chronologist, timekeeper, annalist, calendar year, leap year, Julian calendar, Gregorian calendar, Chinese calendar, Jewish calendar, perpetual calendar, Farmer's almanac, fiscal year, chronological, chronometrical, chronogrammatical, cinquecento, quattrocento, trecento, o'clock.


N pendency, dependency, suspension, hanging, pedicel, pedicle, peduncle, tail, train, flap, skirt, pigtail, pony tail, pendulum, hangnail peg, knob, button, hook, nail, stud, ring, staple, tenterhook, fastening, spar, horse, pendent, pendulous, pensile, hanging, beetling, jutting over, overhanging, projecting, dependent, suspended, loose, flowing, having a peduncle, pedunculate, tailed, caudate.

For further exploring for "pendulum" in Webster Dictionary Online

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