Meanings
nounextensionalism (usually uncountable, plural extensionalisms)
plural extensionalisms
- uncountableusuallyhuman sciencesThe belief in extensionality.
Origin
From extensional + -ism (suffix forming the names of schools of thought, systems, or theories).
Full word history & related roots →Cite this entry
APA
extensionalism. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/extensionalism
MLA
“extensionalism.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/extensionalism. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “extensionalism,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/extensionalism.
Source: extensionalism on Wiktionary, CC BY-SA 4.0.