liquescent
adjective
li·ques·cent li-ˈkwe-sᵊnt 
: being or tending to become liquid : melting
Example Sentences
Recent Examples on the Web Piles of dead and liquescent bats seemed a bad sign, potentially invalidating the hypothesis that Rousettus aegyptiacus might be a reservoir host of Marburg. 
David Quammen, Popular Science, 15 Oct. 2012
David Quammen, Popular Science, 15 Oct. 2012 Word History
Etymology
Latin liquescent-, liquescens, present participle of liquescere to become fluid, inchoative of liquēre
First Known Use
circa 1727, in the meaning defined above