What is "colliquation"

Colliquation \Col`li*qua"tion\, n.

1. A melting together; the act of melting; fusion.

   When sand and ashes are well melted together and suffered to cool, there is generated, by the colliquation, that sort of concretion we call ``glass''.
   --Boyle.

2. (Med.) A processive wasting or melting away of the solid parts of the animal system with copious excretions of liquids by one or more passages. [Obs.]

n. 1 The act of becoming liquid; melting. 2 (context medicine English) The wasting-away of parts of the body; consumption.