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trip switch
trip up
tripalmitin
tripartite
tripartition
tripe
triphenylmethane
triphibian
triphibious
triphosphate
triphosphopyridine nucleotide
triphthong
tripinnate
Tripitaka
tripl.
triplane
triple
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triode
tri·ode [ trd ] (plural tri·odes)


noun 
Definition:
 
electron tube: an electron tube that has an anode, a cathode, and a grid that controls electron flow between the two
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