thermal UK /ˈθɜːməl/US /ˈθɝməl/adjective 4noun 3verb 2forms 5 adjective4 •Pertaining to heat or temperature.Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems—surgical foam, a thermal gel depot, a microcapsule or biodegradable polymer beads. — 2013 •Caused or brought about by heat. •Providing efficient insulation so as to keep the body warm. •Having a rough finish from treatment with a blowtorch. noun3 •A column of rising air in the lower atmosphere created by uneven heating of a planet's surface.The hawk had mounted its thermal by the time he got to the yard, flapping its wings violently against the updraft. — 2019 •FLIR. •thermocline. verb2 •To fly an unpowered aircraft in a thermal (column of rising air). •To create a rough finish on stone by treating it with a high-temperature blowtorch. formsthermaled · thermalled · thermaling · thermalling · thermals
