Meaning of washer

wash•er

Pronunciation: (wosh'ur, wô'shur), [key]
— n.
  1. a person or thing that washes.
  2. See
  3. a flat ring or perforated piece of leather, rubber, metal, etc., used to give tightness to a joint, to prevent leakage, to distribute pressure, etc., as under the head of a nut or bolt.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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