theta-delta

noun

A symbol, depicting the uppercase Greek letter theta interwoven with a delta, that represents therianthropy (similar to the heptagram for otherkinity).

Meanings

nountheta-delta (plural theta-deltas)

plural theta-deltas · alternative theta delta

  1. A symbol, depicting the uppercase Greek letter theta interwoven with a delta, that represents therianthropy (similar to the heptagram for otherkinity).

    Hey psst would anyone be interested in buying a theta-delta (therian symbol thing) soft enamel pin if I custom ordered some? I'm baffled that they don't already exist

    2018 August 3, CoyoteTraveller, Twitter
    3 more examples

    Your "Therian symbol", the Theta Delta, is incorrectly drawn: The bar of Theta should have crossbars on the ends, while Delta's left face should be noticeably thinner than the other two. In any event, it doesn't appear to be very "common" or "well-liked", given this is the first I've seen of it.

    2006 March 18, Jure Sah, “Free Sibe”, in alt.horror.werewolves, Google Groups

    I think that's a pretty neat logo and I definitely prefer it to the Theta-Delta (which makes me think of dentists...and it's just an ugly symbol to me). I think that logo is cute and could be easily worn on a t-shirt though I think the hoof print needs resized.

    2012 October 4, Arawn, “An Awesome Therian Logo”, in Werelist

    Guten morgen, I appreciate the advice! Very smart… that could actually work, although, she may recognize the delta in the theta delta, since she watches those alpha männlich videos with my father…

    2023 October 14, u/Grandma_Biter, “How do I convince my mom the theta delta is a different symbol?”, in r/Therian, Reddit

Origin

From the first character of θηρίον (thēríon, “wild beast”), and Δ (delta), mathematical symbol for change.

Full word history & related roots →
Cite this entry
APA

theta-delta. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/theta-delta

MLA

“theta-delta.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/theta-delta. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “theta-delta,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/theta-delta.

Source: theta-delta on Wiktionary, CC BY-SA 4.0.