calx definition by Wordo

Noun

The

substance

which

remains

after

a

metal

or

mineral

has

been

thoroughly

burnt

,

once

seen

as

being

the

essential

substance

left

after

the

expulsion

of

phlogiston

,

but

now

recognised

as

being

the

metallic

oxide

(

or

,

in

some

cases

,

the

metal

in

a

state

of

sublimation

).