Medical Definition of presenilin
: any of several proteins of cell membranes that are believed to contribute to the development of Alzheimer's disease
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
- What Puts the 'Tide' in ‘Yuletide'?
- 13 Breakfast Foods That Are Also Verbs
- The Declassified History of 'Security Blanket'
- If You Like to Complain About 'Decimate'...
Ask the Editors