- (n.) The property of crystallizing in three forms fundamentally distinct, as is the case with titanium dioxide, which crystallizes in the forms of rutile, octahedrite, and brookite. See Pleomorphism.
- (n.) The coexistence among individuals of the same species of three distinct forms, not connected, as a rule, by intermediate gradations; the condition among individuals of the same species of having three different shapes or proportions of corresponding parts; -- contrasted with polymorphism, and dimorphism.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). trimorphism. Retrieved September 22, 2026, from http://smartdefine.org/trimorphism/definitions/2074748 |
| Chicago | Webster's. 2011. "trimorphism" http://smartdefine.org/trimorphism/definitions/2074748 (accessed September 22, 2026). |
| Harvard | Webster's 2011, trimorphism, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/trimorphism/definitions/2074748>. |
| MLA | Webster's. "trimorphism" 28 May 2011. Web. 22 September 2026. <http://smartdefine.org/trimorphism/definitions/2074748> |