heptodeWiktionary 原文英/ˈhɛp.təʊd/美/ˈhɛpˌtoʊd/构词拆解hepthept-前缀ode-ode后缀hept-Alternative form of hepta- used before a vowel.-odeWay, path, travel. · Way, means, method, system.词源说明From hept- + -ode.释义名词noun1A compound thermionic valve containing a triode and tetrode; was used in superheterodyne radio receivers.