- The lumens of the membranes are the retentate or feed side.
- This pressure difference across the membrane and concentration differences across the membrane result in transport of certain molecules through the membrane (filtrate or permeate), while larger molecules remain on the feed side (retentate).
- That boxer is a prodigious feed.
- The deer was peppered with shot all down one side.
- Unwaged members pay a lower entrance fee.
- The ship kept the buoy on her off side.