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1. a ring of rubber or plastic or a metal eyelet designed to line a hole to prevent a cable or pipe passed through it from chafing
2. a ring of rope hemp used to stuff the gland of a pipe joint
3. Med a small tube inserted into the eardrum in cases of glue ear in order to allow air to enter the middle ear
4. Austral informal a young or inexperienced surfer
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
A metal washer or eyelet.
A piece of fiber soaked in a packing material and used under bolt and nut heads to preserve tightness.
Device made of rope, plastic, rubber, or metal to protect the rotating band of projectiles.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A metal or plastic eyelet which provides a reinforced hole for attachment.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.