a battery or other source of power for heating the filament or cathode heater of an electron tube.
BECOME A PRO CHEF WITH THIS EXQUISITE CUISINE QUIZ!
Even if you can't be a professional chef, you can at least talk like one with this vocabulary quiz.
Question 1 of 9
You may have read the word "simmer" in a recipe or two, but what does it really mean?
Words nearby A supply
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020