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.
  fresco
       n 1: a mural done with watercolors on wet plaster
       2: a durable method of painting on a wall by using watercolors
          on wet plaster
       v : paint onto wet plaster on a wall
       [also: frescoes (pl)]