To save this word, you'll need to log in.
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
Keep scrolling for more
Comments on bay oil
What made you want to look up bay oil? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
A More Exception(al) Quiz
- Which of the following words is not a synonym for ‘a young person’?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Share bay oil