am‧mo‧ni‧a /əˈməʊniə $ -ˈmoʊ-/ noun [uncountable]
[Date: 1700-1800; Language: Modern Latin; Origin: Latin sal ammoniacus 'salt of Amon', from Amon ancient Egyptian god near one of whose temples the substance was obtained]

1. a clear liquid with a strong bad smell that is used for cleaning or in cleaning products

2. a poisonous gas with a strong bad smell that is used in making many chemicals, fertilizers etc

[TahlilGaran] Dictionary of Contemporary English ▲