In*va"ri*a*ble (?), n. (Math.)
An invariable quantity; a constant.
In*va"ri*a*ble (?), a. [Pref. in-
not + variable: cf. F. invariable.] Not given
to variation or change; unalterable; unchangeable; always
uniform.
Physical laws which are
invariable.
I. Taylor.
-- In*va"ri*a*ble*ness, n. --
In*va"ri*a*bly, adv.