pl. -·sei· or -·seis·
a native U.S. or Canadian citizen whose grandparents were Japanese immigrants
Origin of sanseiJapanese ; from Sino-Japanese san, three + sei, generation
nounpl. Sansei or San·seis
The US-born grandchild of Japanese immigrants to America.
Origin of SanseiJapanese : san, three; see shamisen + sei, generation; see issei.