The Collaborative International Dictionary of English v.0.48:

Synalepha \Syn`a*le"pha\, n. [NL., fr. L. synaloepha, Gr. ?,
   from ? to melt together; sy`n with + ? to besmear.] (Gram.)
   A contraction of syllables by suppressing some vowel or
   diphthong at the end of a word, before another vowel or
   diphthong; as, th' army, for the army. [Written also
   synaloepha.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Synaloepha \Syn`a*loe"pha\, n. [L.]
   Same as Synalepha.
   [1913 Webster]