Thermal conductivity of plastic. [1] Thermals are created by the uneven heating of Earth's surface from solar radiation, and are an example of convection, specifically atmospheric convection. connected with heat: 2. adj. THERMAL meaning: 1 : of, relating to, or caused by heat; 2 : designed to keep you warm by preventing heat from leaving your body. (stone) Having a rough finish from treatment with a blowtorch. thermal synonyms, thermal pronunciation, thermal translation, English dictionary definition of thermal. Feb 24, 2026 · Caused or brought about by heat. Learn more. Did you know? THERMAL meaning: 1. of, pertaining to, or of the nature of thermae: thermal waters. A thermal is a movement of rising warm air. n. (of clothes or coverings) made of a material that is especially…. Collins COBUILD Advanced Learner’s Dictionary. Define thermal. Physics Also, thermic. 1. Copyright © HarperCollins Publishers ther•mal (thûr′ məl), adj. Of, relating to, using, producing, or caused by heat. The meaning of THERMAL is of, relating to, or caused by heat. See examples of thermal used in a sentence. How to use thermal in a sentence. Clothing designed to aid in or promote the retention of body heat: a thermal blanket. (military) FLIR. Birds use thermals to lift them through the air. THERMAL definition: Also of, relating to, or caused by heat or temperature. of, pertaining to, or caused by heat or temperature: thermal capacity. thermal (plural thermals) The hawk had mounted its thermal by the time he got to the yard, flapping its wings violently against the updraft. Thermal definition: Of, relating to, using, producing, or caused by heat. A thermal column (or thermal) is a rising mass of buoyant air, a convective current in the atmosphere, that transfers heat energy vertically. THERMAL meaning: 1 : of, relating to, or caused by heat; 2 : designed to keep you warm by preventing heat from leaving your body A thermal column (or thermal) is a rising mass of buoyant air, a convective current in the atmosphere, that transfers heat energy vertically.
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