from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A body suspended from a fixed support so that it swings freely back and forth under the influence of gravity, commonly used to regulate various devices, especially clocks.
- noun Something that swings back and forth from one course, opinion, or condition to another.
from The Century Dictionary.
- noun Anything that hangs down from a point of attachment and is free to swing.
- noun In mech., a body so suspended from a fixed point as to move to and fro by the alternate action of gravity and its acquired energy of motion.
- noun A chandelier or lamp pendent from a ceiling.
- noun A guard-ring of a watch and its attachment, by which the watch is attached to a chain.
- noun A pendulum that at some point of its path closes a circuit, this in turn either reporting the beats of the pendulum at distant stations for time-comparisons, or directly controlling a number of clocks. See
electric clock, under clock.
- noun See the adjectives.
- noun A pump in which the reciprocating motion of the piston is controlled by a pendulum.
- noun A pump the handle of which swings on either side of its center of suspension.
- noun A pendulum consisting of a spherical bob suspended from a cord or wire.
from the GNU version of the Collaborative International Dictionary of English.
- noun 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.
- noun See under
- noun 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.
- noun an ordinary pendulum; -- so called, as being made up of different parts, and contrasted with
- noun a weight connected by a rod with a fixed point; and revolving in a horizontal circle about the vertical from that point.
- noun the weight at the lower end of a pendulum.
- noun a plumb level. See under
- noun the balance of a watch.
- noun 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.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
body suspendedfrom a fixed supportso that it swings freely backand forthunder the influenceof gravity, commonly used to regulatevarious devicessuch as clocks.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun an apparatus consisting of an object mounted so that it swings freely under the influence of gravity
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
Help support Wordnik (and make this page ad-free) by adopting the word pendulum.
That late Michael Halliday goal at the Oval on Good Friday has swung the title pendulum back in favour of the east-Belfast side - but only just.
That's why the pendulum is always swinging, but it's particularly acute, I think, in times and in places that have high stress of citizens.
Every time I think the pendulum is at its apex, it keeps on moving to the right anyway.
Tolliver's counterexample, which he calls the pendulum case, goes like this: suppose a physics student has learned that from the period of a pendulum (i.e., the time it takes to complete a swing) one can calculate its length and vice versa.
The pendulum is already starting to swing the other direction.
Think Progress » At event with a large number of ‘empty seats,’ Palin mocks the ‘little Twittering thing.’
NCIS was perturbed at the end of last season, and the pendulum is slowly returning to status quo.
The pendulum is rapidly swinging back to the old condition of things.
Now the pendulum is swinging more gently, so that there is rest within action and action within rest.
Professor Christopher B. Leimberger states in the "Atlantic" that "signs of physical and social deterioration are spreading" in the suburbs and the "pendulum is swinging back toward urban living."
"The pendulum is going to swing back from shows starring White House crashers, New Jersey alcoholics, and people dressing up like a banana to make a deal," she says.
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