Definition of "alfresco"

alfresco

/ælˈfɹɛs.koʊ/

adjective
not comparable
1. Outdoors, open to the atmosphere.
  Quotations
  We sat alfresco on the edge of a “square,” in reality a pond of cobbly mud with a plinth plonked in its navel […]
  2004, David Mitchell, Cloud Atlas, London: Hodder and Stoughton
adverb
not comparable
1. Outdoors; in fresh air.
2. (art) Onto fresh plaster that is still moist.