1. [n]  a durable method of painting on a wall by using watercolors on wet plaster
2. [n]  a mural done with watercolors on wet plaster
3. [v]  paint onto wet plaster on a wall

1. \Fres"co\, n.; pl. {Frescoes} or {Frescos}. [It., fr.
   fresco fresh; of German origin. See {Fresh}, a.]
   1. A cool, refreshing state of the air; duskiness; coolness;
      shade. [R.] --Prior.
   
   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 .
   
   

2. \Fres"co\, v. t. [imp. & p. p. {Frescoed}; p. pr. & vb.
   n. {Frescoing}.]
   To paint in fresco, as walls.
   
   

1. An object-oriented api for graphical user interfaces, under development by the x consortium as an open, multi-vendor standard.

2. An object-oriented specification language.

["Refinement in Fresco", in Object Oriented Specification Case Studies, K. Lano et al eds, P-H 1993].