Definition of sodium hydroxide
: a white brittle solid NaOH that is a strong caustic base used especially in making soap, rayon, and paper
Test Your Vocabulary
Great Words for Scrabble
-
- Which of the following Q-without-U words means the number five in cards or dice?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share sodium hydroxide
Time Traveler for sodium hydroxide
The first known use of sodium hydroxide was in 1885
See more words from the same year