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oscilloscope

os·cil·lo·scope [ ə síllə skp ] (plural os·cil·lo·scopes)


noun 
Definition:
 
device for showing waveforms: a device that uses a cathode ray tube to produce a visual record of an electrical current on a fluorescent screen. Use: testing of electronic equipment, measurement of electrical impulses of the heart or the brain.

[Early 20th century. < oscillation]

os·cil·lo·scop·ic [ ə sìllə skóppik ] adjective
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