noun
polymorph
PAH-lee-morf/pˈɑlˌimˌɔrf/
An entity that exists in multiple distinct forms.
Aragonite is a polymorph of calcium carbonate with a different crystal structure from calcite.

Etymology
Although the pieces mean “many forms,” the noun can name one member of that variety. It was used for an individual organism whose form differs from others in the same group or species.
In context
the marketed structure would convert from the created structure to a much more stable polymorph that then would fail to dissolve in solution
More examples
- In this game, a polymorph can switch between human and animal forms.
- The organism is a polymorph, occurring in several distinct forms.
- The novel's polymorphs disguise themselves as ordinary animals.
Forms
polymorph · polymorphs
polymorphic adjective — Existing or occurring in several distinct forms.
polymorphism noun — The existence of multiple distinct forms.
Similar words
- shapeshifter
- Specifically a being that can change its physical form.