(Islam) an invisible spirit mentioned in the Koran and believed by Muslims to inhabit the earth and influence mankind by appearing in the form of humans or animals. Synonyms:djinn, djinni, djinny, genie, jinnee.
... she had thought spending his time in drunken carouses. He had brought her so far, to the very threshold of what she sought, and, if he should now abandon her, that threshold must remain uncrossed. De Launay had taken on some of the attributes of a guardian angel, a jinni who alone could guide her to the goal she sought. And she was about to divorce him, to cut the slight tie that bound him ... — Louisiana Lou • William West Winter