n.
Pronunciation: ' f ō -t ō - ˌ tüb, - ˌ tyüb
Function: noun
Date: 1930
: an electron tube having a photoemissive cathode whose released electrons are drawn to the anode by reason of its positive potential
n.
Pronunciation: ' f ō -t ō - ˌ tüb, - ˌ tyüb
Function: noun
Date: 1930
: an electron tube having a photoemissive cathode whose released electrons are drawn to the anode by reason of its positive potential
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012