To save this word, you'll need to log in.
Definition of prescutal suture
: a transverse groove on the mesonotum and metanotum of most insects separating the prescutum and scutum and forming the prescutal ridge on the inner surface
Test Your Vocabulary
Semantic Drift Quiz
- Which of the following was once a synonym for fun?

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 prescutal suture