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biological

mastery

UK /ˌbaɪ.ə(ʊ)ˈlɒd͡ʒ.ɪ.kəl/ US /ˌbaɪ.əˈlɑ.d͡ʒɪ.kəl/adjnoun

card 1 of 10 · synonym

Which word is closest in meaning to 'biological' in this sentence?

Adoptive parents often worry about the role of the biological family.