serrate

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Having or forming a row of small sharp projections resembling the teeth of a saw: serrate teeth; a serrate talon.
2. adj. Having a saw-toothed edge or margin notched with toothlike projections: serrate leaves.
3. v. To make serrate or saw-toothed; jag the edge of.

Century Dictionary and Cyclopedia

1. Notched on the edge like a saw; toothed; specifically, in botany, having small sharp teeth along the margin, pointing toward the apex: as, a serrate leaf. When a serrate leaf has small serratures upon the large ones, it is said to be doubly servate, as in the elm. The word is also applied to a calyx, corolla, or stipule. A serrate-ciliate leaf is one having fine hairs, like the eyelashes, on the serratures. A serrate-dentate leaf has the serratures toothed. In zoology and anatomy serrate is applied to very many structures much unlike one another, but having more or fewer similar teeth.
2. To render serrate; notch like a saw.

Wiktionary

1. adj. Having tooth-like projections on one side, as in a saw.
2. adj. botany (leaves) Having tooth-like projections pointed away from the petiole.
3. v. To make serrate.

GNU Webster's 1913

1. adj. Notched on the edge, like a saw.
2. adj. (Bot.) Beset with teeth pointing forwards or upwards.

WordNet 3.0

1. adj. notched like a saw with teeth pointing toward the apex
2. v. make saw-toothed or jag the edge of