(geometry) the internal angles made by two (parallel) lines with a third, on opposite sides of it.

A voting system in which each voter lists the candidates in order of preference. At each stage the candidate with the fewest votes is excluded and their votes transferred according to the voters' preferences.

(law) The resolution of a dispute through negotiation, mediation, arbitration, or similar means, as opposed to litigation.

present participle of alternate

That alternates. / (mathematics, of a knot) Having a planar diagram whose crossings alternate between "over" and "under" as one travels along the knot.

Any lifestyle generally perceived to be outside the norm of its culture. / (euphemistic, dated) Homosexuality, or other LGB identity or behavior.

A kind of indie country music meshing traditional forms of country music with diverse musical styles like folk, pop, punk and heavy metal.

(electrical engineering) An electric generator which produces alternating current through mechanical means.

(mathematics) Any function in which the interchange of two independent variables changes the sign of the dependent variable.

(music) A genre of rock music that is normally published on independent labels, comprising of many different subgenres, mostly distinguished by the prevalence of thick and distorted guitar music.