Meanings
nounpresenilin (plural presenilins)
plural presenilins
- biochemistryAny of a class of transmembrane proteins
Origin
From presenile + -in, since they were first identified in screens for mutations causing early onset forms of familial Alzheimer's disease.
Full word history & related roots →Cite this entry
APA
presenilin. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/presenilin
MLA
“presenilin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/presenilin. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “presenilin,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/presenilin.
Source: presenilin on Wiktionary, CC BY-SA 4.0.