a combining form representing ammonia, or ammonium, in compound words:
ammonioferric.
Also, especially before a vowel, ammoni-.
Related Word
ammonioferric oxalate
ammonio-|əˈməʊnɪəʊ|combining form of the word ammonium, indicating the presence of that basyl or its salts in a compound; thus ammonio-chloride of silver, ammonio-cupric sulphate, ammonio-magnesian phosphate = magnesium and ammonium phosphate.1853Family Her. 3 Dec. 510/2 The solution of ammonio-nitrate of silver.1876Harley Mat. Med. 207 Ammonio-chloride of Iron was discovered by Basil Valentine in the 14th cent.
ammonio-/əˈməʊnɪəʊ/combining form.
ORIGIN: from ammonium: see -o-.
Indicating the presence of the ammonium ion (esp. in names of minerals).
ammonio- — see ammoni-
ammonio-
Prefix
mineralogyForms the name of the ammonium analogue of a certain mineral.