dybbuk \dyb"buk\ (d[i^]b"b[u^]k; Hebrew d[=e]*b[=oo]k"), n.; pl.
{dybbuks}; Hebr. {dybbukim} (d[=e]`b[=oo]k*[=e]m"). (Jewish
folklore)
the wandering soul of a dead person, or a demon, that enters
the body of a living person and controls that body's
behavior. It may be exorcised by religious rites.
Syn: dibbuk.
[WordNet 1.5 +PJC]