From Longman Dictionary of Contemporary Englishin somebody’s/something’s thrallin somebody’s/something’s thrall (also in thrall to somebody/something) literaryEFFECT/INFLUENCE controlled or strongly influenced by someone or something We have a congress that is in thrall to special interest groups. → thrall
Examples from the Corpus
in somebody’s/something’s thrall• I couldn't bear to be in its thrall for another day.• But the demon which had driven him to drink that night, after months of abstinence, had him in its thrall.• We have a Congress that is in thrall to the gun lobby.• Of the literati in their thrall, Budd Schulberg emerged as the writer who told you most about the bouts.• He had that resigned helplessness which hospital patients and people in the thrall of religious experience have. 