Origin: Latin suffix -al
Thermal has 8 different meanings across 3 categories:
Noun · Adjective · Proper Noun
rising current of warm air
"The thermal lifted our hot-air balloon high above the desert floor, carrying us toward the distant mountains."
A column of rising air in the lower atmosphere created by uneven heating of Earth's surface.
"The pilot adjusted the aircraft's flight path to avoid a strong thermal that was carrying dust high above the desert floor."
In plain English: Thermal is a rising current of warm air that moves upward because it is lighter than the cooler air around it.
"The thermal rises from the desert floor, carrying warm air high into the sky."
To create a rough finish on stone by treating it with a high-temperature blow-torch.
"The mason used an oxy-acetylene torch to thermal the limestone blocks, giving them a rustic, pitted texture that blended perfectly with the old barn walls."
In plain English: To thermal means to become warm because of heat.
"The sun thermalized the cold air as it warmed the ground."
Pertaining to heat or temperature.
"The thermal properties of the new ceramic tiles keep our living room cool during summer afternoons."
In plain English: Thermal means relating to heat or warmth.
"We sat by the thermal window to keep warm during the cold night."
Usage: Use thermal when describing materials that insulate against heat, such as thermal clothing or windows. Avoid confusing it with terms like electric or magnetic unless specifically referring to energy generated by temperature differences.
A census-designated place in Riverside County, California, United States.
"Residents of Thermal enjoy a quiet desert lifestyle just an hour east of San Diego."
The word "thermal" comes from the French term of the same name, which was borrowed from New Latin. It ultimately traces back to Ancient Greek for "heat," describing anything related to warmth or hot springs.