Amido \A*mi"do\, a. [From Amide.]

(Chem.) Containing, or derived from, amidogen.

Amido acid, an acid in which a portion of the nonacid hydrogen has been replaced by the amido group. The amido acids are both basic and acid.

Amido group, amidogen, NH2.

Source: Webster's Revised Unabridged Dictionary (1913)