pinna

• Nom désignant la division primaire d'une feuille composée pennée, ou la partie visible en forme de cartilage de l'oreille externe.

A noun referring to a primary division of a pinnately compound leaf, or the visible cartilaginous part of the external ear.

1. Leaf partC1formal

   A primary division or leaflet of a compound leaf, especially one that is arranged in a pinnate pattern.

   Foliole (d'une feuille composée)

   • The fern's frond is composed of many small pinnae.
   • Each pinna of the compound leaf is attached to the central rachis.
   • Botanists carefully examined the shape of each pinna.

   Synonymesleaflet

2. Ear structureB2formal

   The visible, cartilaginous outer part of the ear that collects sound waves.

   Pavillon de l'oreille (oreille externe)

   • The pinna helps funnel sound into the ear canal.
   • He had a small piercing on his left pinna.
   • The shape of the pinna varies among individuals.

   Synonymesauricle