[ 'tɛtrəʊd ]
■ noun a thermionic valve with four electrodes.
Origin
early 20th cent.: from tetra- + Gk hodos 'way'.
TETRODE
Meaning of TETRODE in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004
[ 'tɛtrəʊd ]
■ noun a thermionic valve with four electrodes.
Origin
early 20th cent.: from tetra- + Gk hodos 'way'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004