tritoonWiktionary 原文/traɪˈtuːn/构词拆解tri-前缀+pontoon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.词源说明Blend of tri- + pontoon.释义名词noun1A type of boat with three parallel pontoons.同族词相关词 1trimaran