a rubber washer
1Washer (hardware) — Assorted washers: flat, split, star and insulated A washer is a thin plate (typically disk shaped) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a screw or nut. Other uses are… …
2washer — [wôsh′ər] n. 1. a person who washes 2. a flat disk or ring of metal, leather, rubber, etc., used variously to make a seat for the head of a bolt or for a nut or faucet valve, to lock a nut in place, to provide a bearing surface, to serve as a… …
3washer — A flat disc with a hole in the center. It may be made of metal, rubber, plastic, or leather. It is often placed under a nut to even out pressure and prevent damage to the part on which it rests. See bridge washer crush washer cup washer dish… …
4washer — washerless, adj. /wosh euhr, waw sheuhr/, n. 1. a person or thing that washes. 2. See washing machine. 3. a flat ring or perforated piece of leather, rubber, metal, etc., used to give tightness to a joint, to prevent leakage, to distribute… …
5washer — [[t]wɒ̱ʃə(r)[/t]] washers 1) N COUNT A washer is a thin flat ring of metal or rubber which is placed over a bolt before the nut is screwed on. 2) N COUNT A washer is the same as a washing machine. [INFORMAL] …
6washer — /ˈwɒʃə / (say woshuh) noun 1. someone or something that washes. 2. a machine or apparatus for washing something. 3. a flat ring or perforated piece of leather, rubber, metal, etc., used to give tightness to a joint, to prevent leakage, and to… …
7washer — n. 1 a a person or thing that washes. b a washing machine. 2 a flat ring of rubber, metal, leather, etc., inserted at a joint to tighten it and prevent leakage. 3 a similar ring placed under the head of a screw, bolt, etc., or under a nut, to… …
8washer — wash|er [ˈwɔʃə US ˈwo:ʃər, ˈwa: ] n [Sense: 1; Date: 1300 1400; Origin: Origin unknown] [Sense: 2; Date: 1800 1900; Origin: wash] 1.) a thin flat ring of plastic, metal, rubber etc that is put over a ↑bolt before the ↑nut is put on, or between… …
9washer — A flat metal or rubber disk placed beneath a bolt head or nut which helps to secure the bolt and distribute its pressure, lessen friction, or prevent leakage …
10washer — noun (C) 1 a thin flat ring of plastic, metal, rubber etc that is put over a bolt 1 (2) before the nut 1 (2) is put on, or between two pipes, to make a tighter joint 2 informal a washing machine …
