teosinte UK /tiːəʊˈsinteɪ/US /tiːoʊˈsɪnteɪ/ noun5 •Any of a few species of maize-like grasses of the genus Zea found in Mexico, Guatemala and Nicaragua. •Zea diploperennis •Zea perennis •Zea luxurians •Zea nicaraguensis formsteosintes