Definitions
1.verbTo perform by turns, or in succession; to cause to succeed by turns; to interchange regularly.
2.verbTo happen, succeed, or act by turns; to follow reciprocally in place or time; followed by with."The flood and ebb tides alternate with each other."
3.verbTo vary by turns."The land alternates between rocky hills and sandy plains."
4.verbTo 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.
5.adjectiveThat alternates.
6.adjective(of a knot) Having a planar diagram whose crossings alternate between "over" and "under" as one travels along the knot.
7.adjective(of a series) Having terms that alternate between positive and negative.
8.adjective(of a multilinear mapping with all arguments belonging to the same space) Whose value is zero when any two adjacent arguments are equal.