- 特异性 tèyìxìng specificitythe quality of being specific to a particular subject, organism, or situation, especially in medicine or biology
- 差异性 chāyìxìng differencedifference; differential; state of being different
- 变异性 biànyìxìng variabilitythe quality of being subject to change or variation; biological variability
- 异性性接触 yìxìngxìngjiēchù heterosexual sexsexual contact between people of the opposite sex
- 异性恋 yìxìngliàn heterosexualityheterosexuality; romantic love between people of the opposite sex
- 异性恋主义 yìxìngliànzhǔyì heterosexismprejudice or discrimination against people who are not heterosexual
- 异性恋者 yìxìngliànzhě heterosexuala heterosexual person; a person who is sexually attracted to the opposite sex
- 异性相吸 yìxìngxiāngxī opposites attractopposite magnetic polarities attract each other; often used metaphorically to describe attraction between opposite sexes or different types of people, particularly between the opposite sexes
- 异性体 yìxìngtǐ opposite sexmembers of the opposite sex; someone of a different gender
