(pat′ə·nə) noun plural ·nae (-nē)
An earthenware or metal bowl or basin used as a domestic utensil by the Romans; a patella. [<L <patere be open]

(pat′ə·nə) noun
1. A green rust or aerugo that covers ancient bronzes, copper coins, medals, etc.
2. An aspect of the surface of stone implements, giving evidence of antiquity.
3. Any surface of antique appearance. Also pa·tine (pə·tēn′). [<Ital. <F patine, prob. <L patina a plate; with ref. to the tarnish on a copper dish]