Science and Technology
- Polar (satellite), a satellite launched by NASA in 1996
- Polar (cataclysmic variable), a strongly magnetic cataclysmic variable star system
- POLAR III and POLAR II, a pedestrian test dummy created by Honda, used to study pedestrian injuries in road traffic accidents
- Polar curve (aviation), a diagram that depicts the gliding performance of an aircraft
- Polar fleece, an insulating synthetic wool fabric
- Polar organelle, a specialised region of the cell membrane found surrounding the flagella base(s) in some bacteria
- Polar overdominance a form of genetic mutation
- Chemical polarity, a concept in chemistry which describes how equally bonding electrons are shared between atoms
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