noun.
The act of imitating; an imitating or copying.
noun.
That which is made or produced by imitating; hence, in general, a likeness or resemblance; a simulated reproduction or representation; more loosely, a likeness or resemblance in general.
noun.
Specifically, in music, the process or act of repeating a melodic phrase or theme, either at a different pitch or key from the original, or in a different voice-part, or with some rhythmic or intervallic modification not so great as to destroy the resemblance.
Made in imitation; counterfeit; not genuine; copied: as, imitation stone, lace, gold, etc.