Twilumium

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Twilumium or twilumic refers to a dawnumic system's secondary origins. For example, a system could be a dawnumic traumagenic and twilumic neurogenic system, originally coming to be due to trauma but having later formed neurogenic members.

History
This term was coined on August 22nd, 2021, on Tumblr.

The name comes from 'twilight', to match its counterpart's 'dawn' theme.

Related Terms

 * Isoscegenic refers to a system with one primary origin, but also has a few members that don't have the same origin as the system as a whole, and may be seen as a synonym.