防炎 ぼうえん Meanings Noun fire prevention Kanji 防 defend. Read as ボウ. 炎 flame. Read as エン. Words containing 防炎 防炎剤 (ぼうえんざい) fire-extinguishing agent 防炎性 (ぼうえんせい) flame retardancy Jinuma: Japanese Dictionary · Word lists