insulation
UK: ˌɪnsjʊˈleɪʃən | US: ˌɪnsəˈleɪʃən
n. the act of insulating or the state of being insulated
n. a material or substance used to prevent heat, electricity, or sound from escaping or entering
n. the process of protecting something from external influences
The word "insulation" derives from the Latin "insula," meaning "island." The connection lies in the idea of isolation—just as an island is separated from the mainland, insulation involves creating a barrier to separate or protect something (e.g., heat, sound, or electricity) from its surroundings. The suffix "-tion" turns the verb "insulate" into a noun, denoting the action or result of insulating. Over time, the term expanded from physical isolation to technical contexts like thermal or electrical insulation.
Proper insulation reduces energy costs by keeping heat inside during winter.
The attic’s insulation was outdated, causing drafts in the house.
Electrical wires require insulation to prevent short circuits.
Sound insulation in recording studios ensures minimal external noise interference.
The insulation around the pipes prevented them from freezing in cold weather.