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

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

(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.

Energy derived from any source other than fossil fuels. / Energy derived from any renewable source, i.e other than fossil fuels or nuclear fission.

(linguistics) Verner alternation

(Indo-European studies) The alternation between consonants in different forms of a word stem in the Germanic languages, as a result of Verner's law.

(biology) metagenesis

(group theory) a group of even permutations of a finite set

(publishing, uncountable) Collectively, newspapers or other printed publications which provide an editorial perspective and information differing from—and often dissenting from—the outlook and information provided by more established, conventional, or official publications.

Any fuel that is not diesel or petrol (petroleum-based).