強きょう酸さんきょうさんFreq.FrequencyTop 100,000Meanings1nounstrong acidChemistry term for an acid that completely dissociates in water; also used in general contexts to refer to highly corrosive acids.塩えん酸さんは強きょう酸さんの一いっ種しゅです。Hydrochloric acid is a type of strong acid.