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Definition of Pinnate

Medically reviewed by Min Clinic Staff | Updated: January 2026

Pinnate: 1. Like the pinna, the part of the ear that projects ("wings out") from the head. 2. Like a feather or leaf with similar parts arranged symmetrically on opposite sides of a central axis.

From the Latin pinnatus meaning winged or feathered, from the Latin pinna meaning a wing or feather.