noun.
A washable, easily removable cloth cover for pillows.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
bed linen consisting of a cover for a pillow
Word Usage
"But above all, there was the mystical process of hanging a pillowcase from the ceiling so that it hung over the stove, dangling above a pot as the thick, almost angrily-purple fluid dripped through the filter and into the pot."