Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Safety chain \Safety chain\
(Railroads) A normally slack chain for preventing excessive movement between a truck and a car body in sluing.
An auxiliary watch chain, secured to the clothes, usually out of sight, to prevent stealing of the watch.
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A chain of sheet metal links with an elongated hole through each broad end, made up by doubling the first link on itself, slipping the next link through and doubling, and so on.
Safety arch (Arch.), a discharging arch. See under Discharge, v. t.
Safety belt, a belt made of some buoyant material, or which is capable of being inflated, so as to enable a person to float in water; a life preserver.
Safety buoy, a buoy to enable a person to float in water; a safety belt.
Safety cage (Mach.), a cage for an elevator or mine lift, having appliances to prevent it from dropping if the lifting rope should break.
Safety lamp. (Mining) See under Lamp.
Safety match, a match which can be ignited only on a surface specially prepared for the purpose.
Safety pin, a pin made in the form of a clasp, with a guard covering its point so that it will not prick the wearer.
Safety plug. See Fusible plug, under Fusible.
Safety switch. See Switch.
Safety touchdown (Football), the act or result of a player's touching to the ground behind his own goal line a ball which received its last impulse from a man on his own side; -- distinguished from touchback. See Touchdown. Same as safety
Safety tube (Chem.), a tube to prevent explosion, or to control delivery of gases by an automatic valvular connection with the outer air; especially, a bent funnel tube with bulbs for adding those reagents which produce unpleasant fumes or violent effervescence.
Safety valve, a valve which is held shut by a spring or weight and opens automatically to permit the escape of steam, or confined gas, water, etc., from a boiler, or other vessel, when the pressure becomes too great for safety; also, sometimes, a similar valve opening inward to admit air to a vessel in which the pressure is less than that of the atmosphere, to prevent collapse.
Wiktionary
n. A belt or strap that attaches a person to an immovable object for safety.
WordNet
n. belt attaching you to some object as a restraint in order to prevent you from getting hurt [syn: life belt, safety harness]
Usage examples of "safety belt".
Behind the yokes were two padded leather chairs, each chair, I could see, fitted with a safety belt to hold the helmsman in place.
Scott McKay was already unlatching his safety belt as he looked over his right shoulder at the attractive woman in the observer's seat.
The physician tenderly directed him to a wall seat and helped the man operate the safety belt.
It was one of many that turned up on a regular basis, week to week, month to month, as if ejected from the roller-coaster of life by some capriciously snapped safety belt.
The loadmaster had a safety belt attached to his waist, standing by the door, blocking the way of the Rangers.
The crew chief hopped in, buckled his safety belt, and watched the pilot go through the startup sequence.