variants:
or pre-treat
pretreated or pre-treated; pretreating or pre-treating
Definition of pretreat
: to treat previously : to subject to pretreatment
pretreat the stain before washing pretreated the roads with sand/salt before the snowstorm pretreating wastewater … he now pretreats patients with medicines to counter possible reactions.— Elisabeth Rosenthal
Test Your Vocabulary
The Great British Vocabulary Quiz
-
- Named after Sir Robert Peel, what are British police called?

Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share pretreat
Time Traveler for pretreat
The first known use of pretreat was in 1926
See more words from the same year