sindexsemicylinder./sem-ee-sil-in-der, sem-ahy-/US // ˌsɛm iˈsɪl ɪn dər, ˌsɛm aɪ- //半圆柱体,半圆筒,半圆柱形,半圆筒型Definitionsn.noun · 名词1.›half of a cylinder divided lengthwise.Level 4More words in s →