Word Study
Mono-
CIDE DICTIONARY
Mono-, [Gr. .].
A prefix signifying one , single , alone ; as, monocarp, monopoly; (Chem.) indicating that a compound contains one atom , one radical , or one group of that to the name of which it is united; as, monoxide, monosulphide, monatomic, etc. [1913 Webster]
OXFORD DICTIONARY
Mono-, comb. form (usu. mon- before a vowel)
1 one, alone, single.
2 Chem. (forming names of compounds) containing one atom or group of a specified kind.
1 one, alone, single.
2 Chem. (forming names of compounds) containing one atom or group of a specified kind.
Etymology
Gk f. monos alone
For further exploring for "Mono-" in Webster Dictionary Online
