Definitions

1. adjective

Having the nature of a caustic, or tending to cause corrosion or destruction

“The caustical properties of the chemical made it unsuitable for laboratory use.”

2. adjective

Pertaining to or having the qualities of a caustic, as burning or corroding

“The caustical effect of the acid on the metal was immediate and severe.”

3. noun

A quality of being caustic, as burning or corroding

“The caustical of the acid was evident in its ability to dissolve metal.”