neckplate

noun neckplates · neck plate · neck-plate

1. A piece of armour worn around the throat or neck; a gorget. For a long time the neckplate or gorget was retained as part of the regular equipment and it even became exaggerated in size; but it finally became so small that […] it was little more than an ornament […]
2. An armor panel on a helmet which protects the neck. 542. Half Suit. … German, about 1540. Consisting of - Open Casque with spherical skull finishing in a pointed apex, umbril, neckplate and hinged earpieces. Gorget and Pauldrons combined. Breastplate with strong tapul and laminated gussets.
3. A small, typically rectangular plate on the neck of a guitar (or bass, etc) through which screws are threaded to attach the neck to the body. Maple neck with rosewood fingerboard only; commemorative neckplate.
4. A plate, used in tracheostomy, which prevents the tube from descending into the trachea. A tracheostomy device comprising : a neckplate having an access opening; a trach head swivelly connected to said neckplate at said access opening; a tube adapted for insertion into a patient's breathing passage […]