Definition of preamplifier
: an amplifier designed to amplify extremely weak electrical signals before they are fed to additional amplifier circuits
Keep scrolling for more
Test Your Vocabulary
Name that Thing: Flower Edition
-
- Name that flower

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share preamplifier
Time Traveler for preamplifier
The first known use of preamplifier was in 1934
See more words from the same year