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.]
© Webster 1913.