A kitten will be considered a cat when it's nine months old. I once read that a cat was adolescent from about 10 to about 18 months of age... I guess that means s/he's an adult past 18 months of age.
Ethnically, Mexican Americans are a diverse population including Mexicans of Indigenous ancestry, Mexicans of European ancestry (mostly Spanish), and Mexicans of Middle Eastern stock (mainly Lebanese).
However, many Chicano researchers believe that the term comes from Mexicano, which is the Spanish word for âMexican.â The word Mexicano was used in ancient Mexico to identify a member of the Aztec Indian tribe. In modern usage, however, anyone born in Mexico, regardless of ethnic heritage, is a Mexicano.