leaflet(redirected from Leaflet (botany))
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
1. A layer of phospholipid; thus, a lipid bilayer has two leaflets.
2. A thin, flattened object or structure.
The part of a valve designed to open in the direction of flow and close to prevent backflow. Its base is typically attached to a larger structure by a fixed stalk and its unattached end moves.