合成洗剤 ごうせいせんざい Meanings Noun synthetic detergent Kanji 合 fit. Read as ゴウ. 成 become. Read as セイ. 洗 wash. Read as セン. 剤 agent. Read as ザイ. Words containing 合成洗剤 非イオン系合成洗剤 (ひイオンけいごうせいせんざい) non-ionic detergent Jinuma: Japanese Dictionary · Word lists