ACERSECOMIC. A person whose hair has never been cut. Image credit: The Project Twins
BIBLIOCLASM. The practice of destroying, often ceremoniously, books or other written material and media. Image credit: The Project Twins
CACODEMONOMANIA. The pathological belief that one is inhabited by an evil spirit.Image credit: The Project Twins
DACTYLION. An anatomical landmark located at the tip of the middle finger. Image credit: The Project Twins
ENANTIODROMIA. The conversion of something into its opposite. Image credit: The Project Twins
See the rest of the series over at Brain Pickings.