acorn tube
noun Electronics.
a vacuum tube, resembling an acorn in size and shape, used chiefly in ultrahigh-frequency electronic devices.
Words nearby acorn tube
acorn chair, acorn clock, acorn spoon, acorn squash, acorn sugar, acorn tube, acorn valve, acorn worm, acosta's disease, acotyledon, acouasm
Origin of acorn tube
First recorded in 1930–35
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019