IPA: /əˈmoʊniˌæk/
KK: /əˈmōnēˌak/
Relating to or having the characteristics of a chemical compound called ammonia, which has a strong smell and is often used in cleaning products.
The ammoniac solution was used in the laboratory for various experiments.
A strong-smelling substance obtained from a plant, used in the past for making perfumes and as a medicine to help with breathing and to stimulate the body.
The herbalist recommended ammoniac for its medicinal properties.
Ammoniac is derived from the word "ammonia" (from New Latin *ammonium*, which comes from the Greek *ammoniakos*, meaning pertaining to Ammon, the Egyptian god). The suffix "-iac" (meaning relating to or characterized by) indicates a connection to ammonia. Thus, ammoniac refers to something that is related to or characterized by ammonia.
Think of ammonia being connected to the Egyptian god Ammon, which helps you remember that ammoniac relates to ammonia.