acorn valve

US acorn tube

noun

a small electronic valve, approximately acorn-shaped with small closely-spaced electrodes, used in ultrahigh-frequency applications

Nearby words

  1. acorn clock,
  2. acorn spoon,
  3. acorn squash,
  4. acorn sugar,
  5. acorn tube,
  6. acorn worm,
  7. acosta's disease,
  8. acotyledon,
  9. acouasm,
  10. acouchi

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012