biàn​zhǒng

mutation

变种 (變種) biàn​zhǒng
mutation noun
a biological variety or genetic mutation within a species

The new variant of this virus spreads extremely rapidly.

variant noun
a different version, form, or manifestation of something

This political system is seen as a variant of authoritarianism.

Frequency

Movie subtitles
4.41 per million appears in 1% of films
Written text
2.27 per million

Sources

Definitions
CC-CEDICT