medical Definition of aquaporin
- Several scientific groups are now directing their attention to the aquaporins, a large family of water transport molecules whose members each have unique tissue distributions in kidney.
- —Peter Agre, Proceedings of the National Academy of Science, August 1998
- Water passes through the cell membrane via channels called aquaporins. These channels are so small that water molecules travel through in single file, while larger molecules cannot enter.
- —Julie Rehmeyer, New Scientist, 1 July 2006