SINCE 1828
stop down
verb
stopped down;
stopping down;
stops down
Definition of stop down
: to reduce the effective aperture of (a lens) by means of a diaphragm
Keep scrolling for more
Comments on stop down
What made you want to look up stop down? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
The Exceptions Quiz III
-
- Which of these words does not mean "nonsense"?
Test your vocabulary with our 10-question quiz!
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
Share stop down
Resources for stop down