acorn valve
now rare
noun
1A mechanical valve resembling an acorn.
2 Electronics = acorn tube.
Origin
1930s; earliest use found in U.S. Patents.
- unscented
- unscheduled
- unscholarliness
- unscholarly
- unschooled
- unscientific
- unscientifically
- UNSCOM
- unscramble
- unscrambler
- unscratched
- unscreened
- unscrew
- unscripted
- unscriptural
- unscrupulous
- unscrupulously
- unscrupulousness
- unseal
- unsealed
- unsealed road
- unsearchable
- unsearchableness
- unsearchably
- unsearched