Effluvium a. : Subtile or invisible emanation; exhalation perceived by the sense of smell; especially, noisome or noxious exhalation; as, the effluvium from diseased or putrefying bodies, or from ill drainage.

Example:
What is a good way to wear my hair if I have Telogen Effluvium?

Taxonomy
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Defination from the web:
effluvium from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... Etymology: Latin effluvium act of flowing out, from effluere. Date: 1651. 1 : an invisible emanation; especially : an offensive exhalation or smell ...