OSCILLOSCOPE
oscilloscope, scope, cathode-ray oscilloscope, CRO
(noun) electronic equipment that provides visual images of varying electrical quantities
Source: WordNet® 3.1
Etymology
Noun
oscilloscope (plural oscilloscopes)
An electronic measuring instrument that creates a visible two-dimensional graph, on a screen, of one or more continuously varying voltages or currents.
Synonyms
• oscillograph
Source: Wiktionary
Os*cil"lo*scope, n. [L. oscillare to swing + -scope.] (Elec.)
Definition: An instrument for showing visually the changes in a varying
current; an oscillograph.
Source: Webster’s Unabridged Dictionary 1913 Edition