Presenilin

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Any of a class of transmembrane proteins

Etymology

From presenile + -in, since they were first identified in screens for mutations causing early onset forms of familial Alzheimer's disease.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.