Something that transfers thermal energy efficiently is called a conductor.
A conductor of heat is something that transfers thermal energy efficiently.
conductors
Heat transfers thermal energy efficiently from one source to another. The movement of particles when heated results in this efficiency.
conducter
An insulator
conductor
You're probably fishing for "conductor".
insulator
Thermal energy poorly and slowly transfers in liquids
Thermal gradient.
A thermal conductor.
Radiation
thermal energy will always radiate to lower energy matter.
The transfer of thermal energy from one substance to another is known as heat transfer. This can occur through three main methods: conduction (direct contact), convection (through the movement of fluids), and radiation (via electromagnetic waves). Heat transfer plays a crucial role in maintaining temperature balance in various systems and environments.