Thermic
Part of speech: adjective
Definition: of, related to, or associated with heat; thermal
Thermal
Part of speech: noun
Definition: A column of rising air in the lower atmosphere created by uneven heating of Earth's surface.
Part of speech: adjective
Definition: pertaining to heat or temperature.providing efficient insulation so as to keep the body warm.
Example sentence: I went snorkeling between tectonic plates in Iceland's Silfra fissure in the winter. You have to wear thermal layers and a wet suit and what's called a 'teddy-bear suit' so you don't die of hypothermia. My lips still went blue. That was an experience that I will carry with me for the rest of my life - so beautiful and so quiet.