Webster's Revised Unabridged Dictionary · 1913

Fresco

Fresco , noun

[Italian, from fresco fresh; of German origin. See Fresh, a.]

1.
A cool, refreshing state of the air; duskiness; coolness; shade. [Rare] — Prior
2.
(a) (Fine Arts) The art of painting on freshly spread plaster, before it dries.
(b)
(Fine Arts) In modern parlance, incorrectly applied to painting on plaster in any manner.
(c)
(Fine Arts) A painting on plaster in either of senses a and b.
Collocations (1)
al fresco , in the open air; out of doors; outdoors; as, to dine al fresco.

Fresco , transitive verb

To paint in fresco, as walls.