triode
nounUK /ˈtɹaɪ.əʊd/ · US /ˈtɹaɪ.oʊd/
Etymology
Etymology tree Proto-Indo-European *tréyes Proto-Indo-European *tri- Proto-Italic *tri- Latin tri-der. English tri- Proto-Indo-European *sed-der. Proto-Indo-European *sodós? Proto-Hellenic *hodós Ancient Greek ὁδός (hodós)bor. English -ode English triode From tri- + -ode.
1
Business, Electrical engineering, Electricity, Electromagnetism, Electronics, Energy, Engineering, Natural sciences, Physical sciences, Physics A thermionic valve containing an anode, a cathode, and a control grid; small changes to the charge on the grid control the flow from cathode to anode, which makes amplification possible.