noun
coefficient of linear expansion
Physics term for the fractional change in length per degree of temperature change.
線膨張係数は材料によって異なる。
The coefficient of linear expansion differs depending on the material.
Refers to the coefficient of thermal expansion in general, which can include volume expansion, while 線膨張係数 specifically refers to linear expansion.
Compound of 線 (line, linear), 膨張 (expansion), and 係数 (coefficient).