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tachinid
tachism
tachistoscope
tachogram
tachograph
tachometer
tachy-
tachyarrhythmia
tachycardia
tachygraphy
tachylite
tachymetry
tachyon
tachypnea
tachypnoea
tacit
tacit collusion
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tachycardia
tach·y·car·di·a [ tàkee krdee ə ]


noun 
Definition:
 
rapid heart rate: an excessively rapid heartbeat, typically regarded as a heart rate exceeding 100 beats per minute in a resting adult
[Late 19th century. <tachy- + Greek kardia "heart"]

tach·y·car·di·ac adjective
tach·y·card·ic adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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