Source : Webster's Revised Unabridged Dictionary (1913)

Liquescent \Li*ques"cent\ (-sent), a. [L. liquescens, p. pr. of
   liquescere to become liquid, incho. fr. liquere to be
   liquid.]
   Tending to become liquid; inclined to melt; melting.

Source : WordNet®

liquescent
     adj : becoming liquid [syn: {melting}]