grommet (redirected from grummet)

grommet, grummet

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

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grommet [′gräm·ət]

(engineering)

A metal washer or eyelet.

A piece of fiber soaked in a packing material and used under bolt and nut heads to preserve tightness.

(ordnance)

Device made of rope, plastic, rubber, or metal to protect the rotating band of projectiles.