US acorn tube
a small electronic valve, approximately acorn-shaped with small closely-spaced electrodes, used in ultrahigh-frequency applications
acornRead more in this article about some frequently asked questions and fun facts related to our definitions.
What does 🐿️ - Chipmunk Emoji mean?Read more in this article about some frequently asked questions and fun facts related to our definitions.
- acorn clock,
- acorn spoon,
- acorn squash,
- acorn sugar,
- acorn tube,
- acorn worm,
- acosta's disease,
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