Thermal vs. Thermic — Which is Correct Spelling?

Caused by or affected by heat; as, thermal springs.

A thermal column (or thermal) is a column of rising air in the lower altitudes of Earth's atmosphere, a form of atmospheric updraft. Thermals are created by the uneven heating of Earth's surface from solar radiation, and are an example of convection, specifically atmospheric convection.

Of, relating to, using, producing, or caused by heat.

Intended or designed in such a way as to help retain body heat

A rising current of warm air.

Pertaining to heat or temperature.

(fabric) Providing efficient insulation so as to keep the body warm.

Caused or brought about by heat.

(stone) Having a rough finish by treatment with a blow-torch.

(meteorology) A column of rising air in the lower atmosphere created by uneven heating of Earth's surface.

(stone) To create a rough finish on stone by treating it with a high-temperature blow-torch.

To fly an unpowered aircraft in a (thermal) column of rising air.

Of or pertaining to heat; warm; hot; as, the thermal unit; thermal waters.

Designed to retain heat; as, thermal underwear.

Rising current of warm air

Relating to or associated with heat;

Of or relating to hot a hot spring;

Caused by or designed to retain heat;