What does conduction mean?
Conduction is the process by which heat, electricity, or sound travels through a substance by direct transfer between neighbouring particles, without any bulk movement of the material itself. When one end of a metal rod is heated, the atoms there vibrate more vigorously and pass energy along to their neighbours; this gradual relay of energy is conduction. It is one of the three principal modes of heat transfer, alongside convection and radiation, and it explains familiar phenomena such as a metal spoon warming in a hot drink. In biology and medicine, the term also describes the transmission of electrical impulses along nerves, as in tests of nerve conduction. Derived from Latin roots meaning 'to lead together', the word entered English in the sixteenth century and was later adopted by science. Precise and neutral in tone, conduction is essential vocabulary for physics, engineering, and medicine alike.
nounThe transmission or conveying of something — such as heat, electricity, or sound — through a substance or medium by direct transfer from particle to particle, without movement of the medium itself.
- The transfer of heat or electricity through a material by direct contact between particles, without movement of the material itself (physics).
- The transmission of nerve impulses along neurons (physiology).
- The act or process of conveying or transmitting something generally.
"Metals are excellent at conduction, which is why a spoon left in hot tea quickly becomes too hot to hold."
"Copper's high thermal conduction makes it ideal for cookware."
"The neurologist ordered tests to measure nerve conduction in the patient's legs."
Rarely pluralized; the word is normally treated as uncountable since it names a process rather than countable items.
"The textbook compares the conductions of heat and electricity across different metals."
The word 'conduction' comes from the same Latin root as 'conductor' — and before it meant physics, it meant guiding or leading people along a way.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of conduction
Conduction derives from the Latin verb conducere, meaning 'to lead or bring together', formed from com- ('together') and ducere ('to lead'). The English word appeared in the sixteenth century, initially carrying the general sense of guiding or conveying, before scientists in the seventeenth and eighteenth centuries narrowed it to describe the transmission of heat and electricity through matter. It shares its root with related words such as conduct, conductor, and conductive.
How conduction is actually used
Conduction is a technical noun used chiefly in scientific contexts — physics for heat and electricity, physiology for nerve signals. It carries no emotional connotation and is neutral in register; outside technical writing it is rare, with everyday speech favoring simpler words like 'transfer' or 'flow'.
Easily confused with conduction
Convection transfers heat through the bulk movement of a fluid, whereas conduction transfers heat directly through a material without that material moving.