Nisei definition by Webster's New World
Nisei definition by American Heritage Dictionary
noun pl. Nisei Nisei or Ni·seis
Origin: Japanese : ni, second (from Middle Chinese nyih, ri) + sei, generation; see issei .
Nisei - Cultural Definition
Persons whose parents were born in Japan but who were themselves born outside Japan. Many Nisei were moved by force in the internment of Japanese Americans in World War II.
Variant of nisei