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heartbeat    音标拼音: [h'ɑrtb,it]
n. 心跳

心跳

heartbeat
n 1: the rhythmic contraction and expansion of the arteries with
each beat of the heart; "he could feel the beat of her
heart" [synonym: {pulse}, {pulsation}, {heartbeat}, {beat}]
2: a very short time (as the time it takes the eye to blink or
the heart to beat); "if I had the chance I'd do it in a
flash" [synonym: {blink of an eye}, {flash}, {heartbeat},
{instant}, {jiffy}, {split second}, {trice}, {twinkling},
{wink}, {New York minute}]
3: an animating or vital unifying force; "New York is the
commercial heartbeat of America"

heartbeat \heartbeat\ n.
the audible and palpable rhythmic contraction and expansion
of the arteries with each beat of the heart; as, he listened
to her heartbeat with a stethoscope.

Syn: pulse, pulsation, beat.
[WordNet 1.5]

{in a heartbeat} immediately.
[PJC]

63 Moby Thesaurus words for "heartbeat":
anima, animating force, arrhythmia, atman, bathmism, beat, beating,
beating heart, biological clock, biorhythm, blood, breath,
breath of life, divine breath, divine spark, drumming, elan vital,
essence of life, flutter, force of life, growth force, heart,
heartblood, heartthrob, impulse of life, inspiriting force, jiva,
jivatma, life breath, life cycle, life essence, life force,
life principle, life process, lifeblood, living force, palpitation,
pitapat, pitter-patter, pneuma, prana, pulsation, pulse, rat-a-tat,
rataplan, rhythm, seat of life, soul, spark of life, spirit,
staccato, tempo, throb, throbbing, vis vitae, vis vitalis,
vital energy, vital flame, vital fluid, vital force,
vital principle, vital spark, vital spirit

1. The signal emitted by a Level 2 Ethernet
transceiver at the end of every {packet} to show that the
collision-detection circuit is still connected.

2. A periodic synchronisation signal used by software or
hardware, such as a {bus} clock or a periodic {interrupt}.

3. The "natural" oscillation frequency of a computer's clock
crystal, before frequency division down to the machine's clock
rate.

4. A signal emitted at regular intervals by software to
demonstrate that it is still alive. Sometimes hardware is
designed to reboot the machine if it stops hearing a
heartbeat. See also {breath-of-life packet}, {watchdog}.

[{Jargon File}]

(1996-03-12)



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