octangleWiktionary 原文/ˈɑk.tæŋ.ɡ(ə)l/构词拆解octoct-前缀angleangle词干oct-Form of octa- or octo- used before a vowel. · (chemistry) Used for the digit eight 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From oct- + angle.释义名词noun1A geometric figure with eight corners, an octagon.同族词相关词 1octogram