ammoniacal

• POS: Adjective
• HYPHEN: am=mo=ni=a=cal

CIDE DICTIONARY

ammoniacal, a. 

 Of, pertaining, or containing ammonia, or possessing its properties; as, an ammoniac salt; ammoniacal gas.  [1913 Webster]

Ammoniacal engine, an engine in which the vapor of ammonia is used as the motive force. -- Sal ammoniac [L. sal ammoniacus], the salt usually called chloride of ammonium, and formerly muriate of ammonia.

OXFORD DICTIONARY

ammoniacal, adj. of, relating to, or containing ammonia or sal ammoniac.

Etymology

ME ammoniac f. OF (arm-, amm-) f. L f. Gk ammoniakos of Ammon (cf. SAL AMMONIAC) + -AL