from The Century Dictionary and Cyclopedia
- n. In physiology, a spot upon the skin which is sensitive to cold, but insensitive to pressure, pain, or warmth: also termed a cold-point.
Sorry, no etymologies found.
What we cannot see from the picture, however, is the sight fitted to the rifle but, if it had been a thermal imager, the "Vipir", as described by Marine Sergeant Stephen Brown, then the soldier could have picked up the tell-tale "cold-spot" caused by the explosives belt and, with the imager attached to the rifle, could have shot the bomber (if need be) before he or she got close enough to do any damage.
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