Definition of bay oil
1
: a yellow aromatic antiseptic essential oil obtained from the leaves of the bay-rum tree and used in perfumes and especially in bay rum
— called also myrcia oil
2
: a light-yellow essential oil obtained from the leaves of the California laurel
— called also California bay oil
Buying Guide
Our Reviews team has selected the best essential oil diffusers.
Test Your Vocabulary
The Great British Vocabulary Quiz
-
- Named after Sir Robert Peel, what are British police called?

Test your vocabulary with our 10-question quiz!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share bay oil