Definition of second maxilla
: one of the paired appendages immediately behind the first maxillae of an arthropod that in an insect together form the labium
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up second maxilla? Please tell us where you read or heard it (including the quote, if possible).