suprasegmental
adjective phonetics specialized uk/ˌsuː.prə.seɡˈmen.təl/ us/ˌsuː.prə.seɡˈmen.t̬əl/
（言语）超切分的，超音段的
relating to a speech feature, such as stress or pitch, that affects more than one speech sound
Suprasegmental features can be used to signal grammatical differences. 超切分特征可以用来表示语法差异。
See also: segmental