Fres·co n.; pl. Frescoes or Frescos
1. A cool, refreshing state of the air; duskiness; coolness; shade. [R.]
2. Fine Arts (a) The art of painting on freshly spread plaster, before it dries. (b) In modern parlance, incorrectly applied to painting on plaster in any manner. (c) A painting on plaster in either of senses a and b.