1. Running out or extending outward; projecting beyond the main body or outline.
Usage: Chiefly botanical and zoological
2. (of a vein or nerve) Running to the margin or edge of a leaf or wing without branching.
Usage: Botanical and entomological term

Examples

• The excurrent midrib of the leaf extends beyond the blade's edge.
• Mosses with excurrent stems grow taller than those with branching forms.
• The insect's excurrent wing veins run straight to the margin without dividing.
• Excurrent roots grow downward and outward from the main trunk.
• The fish's excurrent siphon projects water away from its body.