Source : Webster's Revised Unabridged Dictionary (1913)

Abies \A"bi*es\, n. [L., fir tree.] (Bot.)
   A genus of coniferous trees, properly called Fir, as the
   balsam fir and the silver fir. The spruces are sometimes also
   referred to this genus.

Source : WordNet®

Abies
     n : true firs [syn: {genus Abies}]