تلفظ بین المللی : /pˌaɪɹəʊskˈəʊp/ تلفظ : [p,aIroUsk'oUp]
English
An instrument for measuring the intensity of heat
radiating from a fire, or the cooling influence of bodies. It is a
differential thermometer, having one bulb coated with gold or silver
leaf.
1. A violent windstorm of limited extent, as the tornado, characterized by an inward spiral motion of the air with an upward current in the center; a vortex of air. It usually has a rapid progr...
