base hit
safety | (baseball) the successful act of striking a baseball in such a way that the batter reaches base safely |
| safety | a score in American football, a player is tackled behind his own goal line |
safety squeeze play
safety squeeze | the runner on third base waits to start home until the batter has bunted successfully |
safety blitz
linebacker blitzing
blitz | (American football) defensive players try to break through the offensive line |
atomic pile
atomic reactor
pile
chain reactor | a nuclear reactor that uses controlled nuclear fission to generate energy |
boiling water reactor
BWR | a nuclear reactor that uses water as a coolant and moderator, the water boils in the reactor core and the steam produced can drive a steam turbine |
| breeder reactor | a nuclear reactor that produces more fissile material than it burns |
| chemical reactor | an apparatus for holding substances that are undergoing a chemical reaction |
condom
rubber safety safe prophylactic | contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse |
| fast reactor | nuclear reactor in which nuclear fissions are caused by fast neutrons because little or no moderator is used |
fuse electrical fuse
safety fuse | an electrical device that can interrupt the flow of electrical current when it is overloaded |
| gasooled reactor | a nuclear reactor using gas as a coolant |
guard
safety
safety device | a device designed to prevent injury or accidents |
hard hat
tin hat
safety hat | a lightweight protective helmet (plastic or metal) worn by construction workers |
| liquid metal reactor | a nuclear reactor using liquid metal as a coolant |
locknut
safety nut | supplementary nut that is screwed down on a primary nut to prevent it from loosening |
nuclear reactor
reactor | (physics) any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements |
pressurized water reactor
PWR | a nuclear reactor that uses water as a coolant and moderator, the steam produced can drive a steam turbine |
| reactor | an electrical device used to introduce reactance into a circuit |
safe-deposit
safe-deposit box
safety-deposit
safety deposit box
deposit box
lockbox | a fireproof metal strongbox (usually in a bank) for storing valuables |
| safety arch | an undecorated arch that is included in order to strengthen or support a construction |
safety belt
life belt safety harness | belt attaching you to some object as a restraint in order to prevent you from getting hurt |
safety bicycle
safety bike | bicycle that has two wheels of equal size, pedals are connected to the rear wheel by a multiplying gear |
safety bolt
safety lock | a bolt that cannot be moved from outside the door or gate |
safety catch
safety lock | guard consisting of a locking device that prevents a weapon from being fired |
| safety curtain | a fireproof theater curtain to be dropped in case of fire |
| safety fuse | a slow-burning fuse consisting of a tube or cord filled or saturated with combustible matter, used to ignite detonators from a distance |
safety lamp
Davy lamp | an oil lamp that will not ignite flammable gases (methane) |
safety match
book matches | a paper match that strikes only on a specially prepared surface |
| safety net | a large strong net to catch circus acrobats who fall or jump from a trapeze |
| safety pin | a pin in the form of a clasp, has a guard so the point of the pin will not stick the user |
safety rail
guardrail | a railing placed alongside a stairway or road for safety |
| safety razor | a razor with a guard to prevent deep cuts in the skin |
safety valve
relief valve
escape valve
escape cock
escape | a valve in a container in which pressure can build up (as a steam boiler), it opens automatically when the pressure reaches a dangerous level |
| thermal reactor | a nuclear reactor in which nuclear fissions are caused by neutrons that are slowed down by a moderator |
thermonuclear reactor
fusion reactor | a nuclear reactor that uses controlled nuclear fusion to generate energy |
traffic island
safety island
safety isle
safety zone | a curbed area in a roadway from which traffic is excluded, provides safe area for pedestrians |
| waterooled reactor | nuclear reactor using water as a coolant |
margin of safety
safety margin
margin of error | the margin required in order to insure safety, in engineering the margin of safety is the strength of the material minus the anticipated stress |
| safety feature | feature of an artifact that is added to insure a user's safety |
occupational safety and health act
federal job safety law | a law passed by the United States Congress that created the Occupational Safety and Health Administration to prevent employees from being injured or contracting diseases in the course of their employment |
| safety net | a guarantee of professional or financial security |
Occupational Safety and Health Administration
OSHA | a government agency in the Department of Labor to maintain a safe and healthy work environment |
safety
refuge | a safe place, He ran to safety |
safety factor
factor of safety | the ratio of the breaking stress of a structure to the estimated maximum stress in ordinary use |
| safety | the state of being certain that adverse effects will not be caused by some agent under defined conditions, insure the safety of the children, the reciprocal of safety is risk |
safety glass
laminated glass
shatterproof glass | glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering |
| safety-related | providing or ensuring safety |