融ゆう剤ざいゆうざいMeanings1nounflux; fusing agentTechnical term in metallurgy, ceramics, and chemistry: a substance added to lower the melting point of a solid mixture.融ゆう剤ざいを加くわえると、金きん属ぞくの融ゆう点てんが下さがります。Adding a flux lowers the melting point of the metal.
