Un*sat"u*ra`ted (?), a. 1. Capable of absorbing or dissolving to a greater degree; as, an unsaturated solution.

2. (Chem.) Capable of taking up, or of uniting with, certain other elements or compounds, without the elimination of any side product; thus, aldehyde, ethylene, and ammonia are unsaturated.

Un*sat"u*ra`ted (?), a. 1. Capable of absorbing or dissolving to a greater degree; as, an unsaturated solution.

2. (Chem.) Capable of taking up, or of uniting with, certain other elements or compounds, without the elimination of any side product; thus, aldehyde, ethylene, and ammonia are unsaturated.

• (of a solution) not saturated; capable of dissolving more of a solute at the same temperature
  
• (chemistry) of a compound containing atoms sharing more than one valence bond, especially of an organic compound having one or more double bonds or triple bonds between carbon atoms
  
• (of a colour) not chromatically pure; diluted