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Related to Mouth guard: night guard


1. Brit the official in charge of a train
2. Sport an article of light tough material worn to protect any of various parts of the body
3. Basketball
a. the position of the two players in a team who play furthest from the basket
b. a player in this position
4. the posture of defence or readiness in fencing, boxing, cricket, etc.
5. take guard Cricket (of a batsman) to choose a position in front of the wicket to receive the bowling, esp by requesting the umpire to indicate his position relative to the stumps
6. give guard Cricket (of an umpire) to indicate such a position to a batsman



an armed detachment appointed to protect and defend military objectives or to render military honors.

In the Soviet armed forces there are garrison (camp) and interior (ship) guards and honor guards. Garrison and interior guards are composed of the commander of the guard, who may be an officer or a sergeant, depending on the importance of the object and the number of posts; privates of the guard, their number depending on the number of posts and shifts; and if necesssary a deputy commander and corporals of the guard. For the protection and defense of the military objects, sentries are assigned—armed soldiers (privates of the guard) directly in charge of the protection and defense of the posts entrusted to them.

Honor guards are appointed for the welcome at the garrison of the chairman of the Presidium of the Supreme Soviet of the USSR, the chairman of the Council of Ministers of the USSR, the generalissimo of the Soviet Union, the minister of defense of the USSR, marshals of the Soviet Union, and admirals of the Fleet of the Soviet Union. Moreover, an honor guard may also be assigned to banners carried at formal sessions, the unveiling of state monuments, the welcome and escorting of representatives of foreign states, and the funerals of servicemen and of civilians who have rendered special services to the state. An honor guard is composed of infantry units from platoon to company level and a band. An honor guard may also be composed only of officers and sergeants.



A shield or other fixture designed to protect against injury.
(mining engineering)
A support in front of a roll train to guide the bar into the groove.


1. In functional programming, a Boolean expression attached to a function definition specifying when (for what arguments) that definition is appropriate.

2. In (parallel) logic programming, a Boolean expression which is used to select a clause from several alternative matching clauses.

See Guarded Horn Clauses.

3. In parallel languages, a Boolean expression which specifies when an message may be sent or received.
References in periodicals archive ?
The product is the latest development in the company's longstanding collaboration with National Science Foundation which was instrumental in development and production of the SISU family of mouth guards.
It is observed that use of mouth guards is not necessary as per rules in high risk contact sports like basketball, handball, football, baseball and judo nor low risk contact sports like biking, volleyball, skating (7).
Mouth guard features: Wearing an appropriately designed and made mouth guard while participating in sport will protect against dental injuries.
But with improved mouth guard technology, and support by parents, coaches, teachers and other role models, this mindset is beginning to change.
The SRC rate for players who wore a specialized or custom-fitted mouth guard was higher than for players who wore a generic mouth guards.
My mum's snoring is very annoying as it keeps me awake, so I'm keen for her to try the mouth guard," said the 27-year-old.
Previous studies have shown that wearing a mouth guard increases the isometric strength of different muscle groups, and the researchers hypothesized that the device (a plastic mouth guard similar to those used in sports) would encourage women to push harder during the second stage of labor.
Some people find a night mouth guard helps break the grinding habit, while for others,finding the source of stress that's causing grinding is the answer.
A plastic mouth guard may be fitted over your teeth to alleviate the pain caused by teeth grinding.
Any child or adult who is engaged in organized sporting activities which may result in contact with another athlete during the activity should wear a mouth guard to prevent injuries to the teeth and supporting soft tissues.