simple past tense and past participle of alternize

To alternate or take turns.

Relating to alternation.

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

(US) Alternative spelling of alternative energy

(physics, cosmology) A hypothetical world situated in a different dimension of space and time than the real world consisting of the universe known and experienced by human beings.

Counterfactual history, a form of scientific speculation used by historians.

(biology) Each of the two forms of an organism whose life cycle involves alternation of generations, or the fact of such alternation occurring in a given organism.

plural of alternate generation

plural of alternate universe