(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.

present participle of altercate

plural of alternating current

plural of alternate generation

(algebra) An algebra such that every subalgebra generated by two elements is associative.

plural of alternative hypothesis

plural of alterable

(pharmacology) A form of the enzyme plasminogen activator (trademark Activase) produced by genetic engineering and used to dissolve blood clots in thromboembolic disorders such as myocardial infarction, deep venous thrombosis, and pulmonary embolism.

One who altercates.

plural of altepetl