adoptian / adoption [əˈdɒpʃ(ə)n]
adoptian – n. – a heterodox theological position that denies the divinity of Jesus Christ of Nazareth. The belief contradicts the orthodox doctrine of the Trinity, which identifies Jesus as eternally God.
An in-depth discussion was done by Christian Wilhelm Franz Walch, Historia Adoptianorum
adoption – n. – the act of accepting an outside person, position, law etc. as one’s own