SAL AMMONIAC Meaning of SAL AMMONIAC in English [ ˌsal ə'məʊnɪak ]■ noun dated ammonium chloride, a white crystalline salt.OriginME: from L. ~us 'salt of Ammon'; see word history at ammonia . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004