Hypertext Webster Gateway: "oscillograph"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Oscillograph \Os"cil*lo*graph\, n. [L. oscillare to swing +
-graph.] (Elec.)
An apparatus for recording or indicating alternating-current
wave forms or other electrical oscillations, usually
consisting of a galvanometer with strong field, in which the
mass of the moving part is very small and frequency of
vibration very high. -- {Os`cil*lo*graph"ic}, a.
From WordNet (r) 1.7 (wn)
oscillograph
n : a device for making a record of the wave forms of
fluctuating voltages or currents
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