tetrode
noun
tet·rode ˈte-ˌtrōd 
: a vacuum tube with a cathode, an anode, a control grid, and an additional grid or other electrode
Word History
First Known Use
1886, in the meaning defined above
- multi-millionairesses
- multi-orgasmic
- multi-screen
- multi-sided
- multi-site
- multi-system
- multi-tool
- multi-track
- multi-tracked
- multi-tracking
- multi-unit tube
- multi-year
- multiage
- multiagency
- multiarmed
- multiatom
- multiauthor
- multiauthored
- multiaxial
- multiband
- multibank
- address bus
- addressabilities
- addressability
- addressable