ガラス玉 ガラスだま Also written 硝子球, ガラス球, 硝子玉 Meanings Noun glass sphere; glass bead; glass marble Kanji 玉 ball. Read as たま. Words containing ガラス玉 ガラス玉演戯 (ガラスだまえんぎ) The Glass Bead Game (1943 novel by Herman Hesse) Jinuma: Japanese Dictionary · Word lists