alternate

Happening by turns; one following the other in succession of time or place; first one and then the other (repeatedly).

(US) Other; alternative.

Designating the members in a series, which regularly intervene between the members of another series, as the odd or even numbers of the numerals; every other; every second.

Alternating; (of e.g. a pair of tinctures which a charge is coloured) succeeding in turns, or (relative to the field) counterchanged.

Distributed singly at different heights of the stem, and at equal intervals as respects angular divergence

(US) A substitute; an alternative; one designated to take the place of another, if necessary, in performing some duty.

(US) A replacement of equal or greater value or function.

That which alternates with something else; vicissitude.

A proportion derived from another proportion by interchanging the means.

To perform by turns, or in succession; to cause to succeed by turns; to interchange regularly.

To happen, succeed, or act by turns; to follow reciprocally in place or time; followed by with.

To vary by turns.

To perform an alternation (removal of alternate vertices) on (a polytope or tessellation); to remove vertices (from a face or edge) as part of an alternation.