Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
adoption [əˈdɔpʃən] n (of son) усыновле́ние; (of daughter) удочере́ние; (of policy) приня́тие
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: