1》 (of one or more things) available as another possibility.
↘(of two things) mutually exclusive.
2》 relating to activities that depart from or challenge traditional norms.
■ noun one of two or more available possibilities.
C16: from Fr. alternatif , -ive or med. L. alternativus , from L. alternat- , alternare 'do by turns', from alternus 'every other', from alter 'other of two'.
Some traditionalists maintain that, because of the word's origin, you can only have a maximum of two ~s, and that uses where there are more than two are wrong. Such uses are, however, normal in modern standard English.