gum ammoniac

== English == === Etymology === From Middle English gomme armoniacum, gomme armonyak, gum armoniac. === Noun === gum ammoniac (countable and uncountable, plural gums ammoniac) Synonym of ammoniacum: A gum-resin exuded from the several perennial herbs in the genus Ferula of the umbel family (Apiaceae). ==== Translations ====