adjective
- Having a margin with two rows of saw-like teeth; doubly serrate.
Usage: botanical and zoological term
Examples
- The biserrate leaves of the elm tree have a distinctive double-toothed edge.
- Botanists identified the plant by its biserrate leaf margins under the microscope.
- The insect's biserrate antennae gave it a unique appearance among related species.
- A biserrate edge is more complex than a simple serrate margin.