Agouti \A*gou"ti\, Agouty \A*gou"ty\ ([.a]*g[=oo]"t[i^]), n. [F. agouti, acouti, Sp. aguti, fr. native name.] (Zo["o]l.) A rodent of the genus {Dasyprocta}, about the size of a rabbit, peculiar to South America and the West Indies. The most common species is the {Dasyprocta agouti}.