Thesaurus
To save this word, you'll need to log in.
Synonyms of serum
as in antibiotic, antiseptic
Synonyms & Near Synonyms for serum
Keep scrolling for more
Keep scrolling for more
Comments on serum
What made you want to look up serum? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Name that Thing: Flower Edition
- Name that flower
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
Share serum
Time Traveler for serum
The first known use of serum was in 1665
See more words from the same year