decangleWiktionary 原文/ˈdɛkˌæŋɡəl/构词拆解decdeca-前缀angleangle词干deca-Ten. · In the metric system, multiplying the unit to which it is attached by ten. Symbol: da词源说明From deca- + angle.释义名词noun1(geometry, archaic) Synonym of decagon (“a polygon with ten sides and ten angles”).同族词相关词 1decagram