ˈhepˌtōd noun
( -s )
Etymology: International Scientific Vocabulary hepta- + -ode
: a vacuum tube with seven electrodes including a cathode, an anode, a control grid, and four additional grids or other electrodes
ˈhepˌtōd noun
( -s )
Etymology: International Scientific Vocabulary hepta- + -ode
: a vacuum tube with seven electrodes including a cathode, an anode, a control grid, and four additional grids or other electrodes
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012