light metal
Technical term for metals with low specific gravity, such as aluminum, magnesium, and titanium. Used in materials science and engineering contexts.
アルミニウムは代表的な軽金属です。
Aluminum is a typical light metal.
軽金属は航空機の材料として重要だ。
Light metals are important as materials for aircraft.
This frame is made of light metal.
Bicycles made of light metal are light and easy to handle.