second-generation

[ sek-uh nd-jen-uh-rey-shuh n ]
/ ˈsɛk əndˌdʒɛn əˈreɪ ʃən /

adjective

being the second generation of a family to be born in a particular country: the oldest son of second-generation Americans.
being the native-born child of naturalized parents.
being a revised or improved version of a product, system, service, etc.: Production has been increased with second-generation robots.

British Dictionary definitions for second generation

second generation

noun

offspring of parents born in a given country

adjective

of an improved or refined stage of development in manufacture a second-generation robot