Definition
An alloy of nickel and chromium with high electrical resistance and the ability to withstand high temperatures without oxidizing. It is commonly used as the heating element in electrical heaters, soldering irons, and similar resistance-heating devices, and as resistance wire in certain aircraft electrical components.
Plain English
Nichrome is a metal mixture, mostly nickel and chromium, that gets hot when electricity passes through it and doesn't burn up or rust at high temperatures. That's why it's used to make heating wires.
Context Anchor
Seen in aircraft maintenance discussions involving electrical resistance wire, heating elements, and parts exposed to high heat.
Derivation
The name is a blend of 'nickel' and 'chrome' (chromium) — the two main metals in the alloy. Knowing this tells you immediately what it is made of and hints at why it behaves the way it does: nickel gives it strength and corrosion resistance, chromium gives it the ability to handle heat without oxidizing.
Why Pilots Care
Maintenance technicians need to recognize Nichrome when working on heating elements or resistance circuits, because substituting ordinary copper or steel wire would fail quickly under heat and could cause an electrical or fire hazard.
Intuition Check
Nichrome is not just a brand name for ordinary wire. In this context, it means a special high-resistance, heat-tolerant metal alloy.
Example Sentence 1
The technician replaced the broken Nichrome heating element in the pitot tube anti-ice circuit.
Example Sentence 2
Nichrome wire is selected for ignition system heaters because it maintains performance after repeated high-temperature cycles.