acorn valve
US acorn tube
noun
a small electronic valve, approximately acorn-shaped with small closely-spaced electrodes, used in ultrahigh-frequency applications
Words nearby acorn valve
acorn clock,
acorn spoon,
acorn squash,
acorn sugar,
acorn tube,
acorn valve,
acorn worm,
acosta's disease,
acotyledon,
acouasm,
acouchi