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Noun, used as a suffix
medicine, agent, (chemical) substance, drug, doseMedizin, Droge, Dosis

ON: ザイ, スイ, セイKUN: かる, けず.る
dose, medicine, drug

Example sentences
イースト菌はパンを膨らませる際の作用剤だ。Parts: イースト菌 (イーストきん), パン, 膨らむ (ふくらむ), (さい), 作用 (さよう), (ざい)Yeast acts as an agent in making bread rise.

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The words and kanji on this web site come from the amazing dictionary files JMDict, EDICT and KANJIDIC. These files are the property of the Electronic Dictionary Research and Development Group, and are used in conformance with the Group's licence. The example sentences come from the projects Tatoeba and Tanaka Corpus. Kanji search by radicals is based on the Kradfile2 and Kradfile-u files containing radical decomposition of 13108 Japanese characters. Many thanks to all the people involved in those projects!