Illustration of agouti
- agouti 1
agouti
noun
agou·ti ə-ˈgü-tē 
1
: any of a genus (Dasyprocta) of tropical American rodents about the size of a rabbit
2
: a grizzled color of fur resulting from the barring of each hair in several alternate dark and light bands
Example Sentences
Recent Examples on the Web One key souvenir from that mating: a jackrabbit version of agouti, the gene that normally revs up its activity and turns snowshoe fur white in the winter, the researchers report today in Science. 
Elizabeth Pennisi, Science | AAAS, 21 June 2018 That spring, a non-flying vulture used a gust of wind to make it out of its enclosure at the Zoo, and in July 2015, a squirrel-like agouti ducked out of its cage before being caught less than 30 minutes later. Ben Panko, Smithsonian, 30 Jan. 2017
Elizabeth Pennisi, Science | AAAS, 21 June 2018 That spring, a non-flying vulture used a gust of wind to make it out of its enclosure at the Zoo, and in July 2015, a squirrel-like agouti ducked out of its cage before being caught less than 30 minutes later. Ben Panko, Smithsonian, 30 Jan. 2017 Word History
Etymology
borrowed from Middle French, borrowed from Tupi akutí
Note: The form (with voiced stop) and spelling depend on French, where the word first appeared in the 16th-century reports of Brazil ("France Antarctique"): in André de Thevet's Les singularitez de la France antarctique, 1558 (agoutin) and Jean de Léry's Histoire d'un voyage faict en la terre du Bresil, 1578 (agouti); agouti was taken up in the next century by Georg Marcgrave and Willem Piso (Historia naturalis Brasiliae, 1648) and in the 18th century by Linnaeus.
First Known Use
1598, in the meaning defined at sense 1
Medical Definition
agouti
noun
agou·ti ə-ˈgüt-ē
1
: a rodent of the genus Dasyprocta (especially D. leporina)
2
: a grizzled color of fur resulting from the barring of each hair in several alternate dark and light bands