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Rear (military) In military parlance, the rear is the part of concentration of military forces that is farthest from the enemy (compare its antonym, the front ). The rear typically contains all logistic and management elements of the force necessary to support the front line forces, and generally constitutes supply depots, ammunition dumps ...
Rear admiral. Rear admiral is a flag officer rank used by English-speaking navies. In most European navies, the equivalent rank is called counter admiral . Rear admiral is usually immediately senior to commodore and immediately below vice admiral. It is usually equivalent to the rank of major general in armies.
Differential (mechanical device) A differential is a gear train with three drive shafts that has the property that the rotational speed of one shaft is the average of the speeds of the others. A common use of differentials is in motor vehicles, to allow the wheels at each end of a drive axle to rotate at different speeds while cornering.
Rearguard. A rearguard or rear security is a part of a military force that protects it from attack from the rear, either during an advance or withdrawal. The term can also be used to describe forces protecting lines, such as communication lines, behind an army. [ 1] Even more generally, a rearguard action may refer idiomatically to an attempt ...
A rear-end collision, often called rear-ending or, in the UK, a shunt, occurs when a forward-moving vehicle crashes into the back of another vehicle (often stationary) in front of it. Similarly, rear-end rail collisions occur when a train runs into the end of a preceding train on the same track. [1] Common factors contributing to rear-end ...
An axle or axletree is a central shaft for a rotating wheel or gear. On wheeled vehicles, the axle may be fixed to the wheels, rotating with them, or fixed to the vehicle, with the wheels rotating around the axle. [ 1] In the former case, bearings or bushings are provided at the mounting points where the axle is supported.
Rear admiral (abbreviated as RADM), also sometimes referred to informally as "rear admiral (upper half)", is a two-star flag officer, with the pay grade of O-8 in the United States Navy, the United States Coast Guard, the United States Public Health Service Commissioned Corps, the National Oceanic and Atmospheric Administration Commissioned Officer Corps and the United States Maritime Service.
Rear (horse), when a horse lifts its front legs off the ground; In stockbreeding, to breed and raise; Humans. Parenting (child rearing), the process of promoting and supporting a child from infancy to adulthood; Gender of rearing, the gender in which parents rear a child; Military. Rear (military), the area of a battlefield behind the front line