tricuspidWiktionary 原文/traɪˈkʌspɪd/构词拆解tritri-前缀cuspidcuspid词干tri-Three. · (chemistry) Used for the digit three to form systematic element names of elements whose existence has been predicted, and which have not yet been given a trivial name.释义形容词adjective1(dentistry) Having three cusps, e.g. a molar tooth2(anatomy) Describing the valve, between the right atrium and ventricle of the heart, that has three triangular segments名词