1. 机能失常：disexuality 双重性特征 | disfunction 机能失常 | disgnosia 认知障碍

2. 机能变常：disequilibration 平衡不稳 | disfunction 机能变常 | dish 皿,碟

noun

1. (medicine) any disturbance in the functioning of an organ or body part or a disturbance in the functioning of a social group

e.g. erectile dysfunction
sexual relationship dysfunction

Synonym: dysfunction