ondograph

[ on-duh-graf, -grahf ]
/ ˈɒn dəˌgræf, -ˌgrɑf /

noun

an instrument for graphically recording oscillatory variations, as in alternating currents.

Origin of ondograph

< French ondographe, equivalent to onde wave (< Latin unda) + -o- -o- + -graphe -graph

British Dictionary definitions for ondograph

ondograph
/ (ˈɒndəʊˌɡrɑːf, -ˌɡræf) /

noun

an instrument for producing a graphical recording of an alternating current by measuring the charge imparted to a capacitor at different points in the cycle

Word Origin for ondograph

C20: from French, from onde wave + -graph