资料来源 : Webster's Revised Unabridged Dictionary (1913)

Gracility \Gra*cil"i*ty\, n. [L. gracilitas; cf. F.
   gracilit['e].]
   State of being gracilent; slenderness. --Milman. ``Youthful
   gracility.'' --W. D. Howells.

资料来源 : WordNet®

gracility
     n : elegance and beauty of movement or expression [syn: {grace}]