A Therianthrope is a person who is, feels, or believes he/she is in part or whole (non-physically) one or more non-human animals on an integral, personal level.  A person experiencing Modern Therianthropy, which is based on either spiritual, psychological, and/or neurobiological experiences that lead a person to identify as a non-human animal. Therianthropes understand that they have physical human bodies.
Therianthrope was being used in Alt.Horror.Werewolves as early as 1995/96. Around 2005, Therian became the commonly used short form of Therianthrope, replacing the old term Were. The term “therianthropy” was first mentioned in AHWW on December, 14, 1994.
The words therianthropy and therianthrope originates from a portmanteu of the Greek words Therios and Anthropos (animal and human respectively) which, combined, loosely translate to "human animal" or "animal man".
See also: theriotype
There are many sub-types of Therians that may or may not be mutually exclusive:
- Vacillant Therianthropy
Scribner, O. “Otherkin lexicon: A multi-lingual dictionary of jargon used in the communities of otherkin, therianthropes, and other similar peoples, v. 0.1 Abridged.” The Art and Writing of O. Scribner. 8 September, 2012. http://frameacloud.com/otherkin/nonfiction-otherkin/otherkin-lexicon/
Scribner, O. “Otherkin timeline: The recent history of elfin, fae, and animal people, v. 2.0.” The Art and Writing of O. Scribner. 8 September, 2012. http://frameacloud.com/otherkin/nonfiction-otherkin/ [Therianthrope/Therian term page 30-32] [History of online Therian community start on page 28]