Of two or more things: Coming or following in place of each other; alternating, successive, varying. Obsolete.

That interchanges, in senses of the verb.

Marked by alternation; coming alternately or by turns.

Alternate, alternating. rare in later use.

Alternate, alternating. Now rare.

Of two or more things: that succeed each other by turns; = alternate, adj. 1.

figurative. Alternately rising and falling; presenting variations comparable to movement up and down.

spec. in Medicine. Of a disease: Occurring during the progress of another disease. Also, Recurring at intervals. Formerly (of a fever), Happening…

Relating to or involving substitution or interchange; as the commutative principle in arithmetic and algebra, i.e. the principle by which the order…