The layer of slack water that pads the upstream face of rooks andother obstructions The broader the upstream face, the more ample the pillow Also called an eddy cushion
A piece of metal or wood, forming a support to equalize pressure; a brass; a pillow block
A pillow is a rectangular cushion which you rest your head on when you are in bed. to rest your head somewhere
a cushion to support the head of a sleeping person rest on or as if on a pillow; "pillow your head
A molded cushion head rest Pillows for neck jet models include a built-in magnet that needs to be detected by the reed switch in order for the neck jets to run
Anything used to support the head of a person when reposing; especially, a sack or case filled with feathers, down, hair, or other soft material
When water flows into a rock, it can pile up in a pillow on the upstream side of the rock Pillows bounce a boat away from the rock and can be used as an aid to maneuvering, when used with skill The absence of a pillow on the upstream side of a rock can mean that the rock is undercut, but the presence of a pillow does not necessarily mean that it isn't