Al″tern (�), a. [L. alternus, fr. alter another: cf. F. alterne.] Acting by turns; alternate. Milton.
Altern base(Trig.), a second side made base, in distinction from a side previously regarded as base.
Webster's Dictionary 1913
Al″tern (�), a. [L. alternus, fr. alter another: cf. F. alterne.] Acting by turns; alternate. Milton.
Altern base(Trig.), a second side made base, in distinction from a side previously regarded as base.