guard

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guard

 [gahrd]
a protective device.
mouth guard any of various removable intraoral appliances that protect the teeth and sometimes the lips and cheeks during contact sports.

guard

(gahrd)
1. To watch over so as to protect or maintain control.
2. A person or thing performing such a function.

guard

A device for protecting something (e.g., a mouth guard or a face guard).

occlusal guard

A removable dental appliance that covers one or both arches and is designed to minimize the damaging effects of bruxism, jaw and head trauma during contact sports, or any detrimental occlusal habits.
See: nightguard; mouth guard
References in periodicals archive ?
Praemunio stands guard continuously - 24 hours a day, 7 days a week, 365 days a year to detect and defend against any possible "hacker" attacks.
He was returning from a shift at a nearby military base, where he stands guard armed with an M-16 rifle.
Meerkats, being low on the food chain, have to be careful when going about their daily business -- someone always stands guard, scanning the horizon for anything that moves.
Army stands guard at the Olympic venue at Deer Valley.
2) An FBI agent stands guard at the Federal Building on Wilshire Boulevard Tuesday.