say it: puh-TEE-nuh
patina is a noun meaning "a fine coating of oxide (produced by oxidation over a long period of time) on the surface of a metal (particularly copper)". It carries 3 recorded senses.
an acquired change in the appearance of something (other than metal or wood)
“a patina of frost”
“a patina of good breeding”
a gloss or sheen on wooden furniture produced by age, polishing, or handling
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for patina come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.