ETYM Latin, a feather.
Division of a usually pinnately divided leaf; SYN. pinnule.
In botany, the primary division of a pinnate leaf. In mammals, the pinna is the external part of the ear.
1. Vilo, brčno pero, brčje pero;
2. Vrsta sitnih klinaca bez glave; klinac u kompasu na kome stoji magnetna igla;
3. Mali, šiljasti štapovi (u geodeziji);
4. Vrsta duguljastih školjki (nl. Pinna marina) čije se okamenotine zovu piniti. (ital.)