an Italian sauce that is a purée of fresh basil, garlic, pine nuts, and Parmesan cheese in olive oil, used esp. over pasta
Origin of pestoItalian past participle of pestare, to pound, grind from Classical Latin pinsere: see pestle
- A sauce consisting of fresh basil, garlic, pine nuts, olive oil, and grated cheese.
- Any of various similar sauces.
Origin of pestoItalian from past participle of pistare, pestare to pound ; see piston .
(usually uncountable, plural pestos)