noun
adhesion; adhesive force
Technical term used in physics, engineering, and materials science to describe the force that causes two surfaces to stick together.
この接着剤は高い附着力を持っている。
This adhesive has high adhesion.
表面の粗さが附着力に影響を与える。
Surface roughness affects adhesive force.
粘着力 refers specifically to the sticking power of a viscous substance, like glue or tape, whereas 附着力 is a broader physical term.
Compound of 附着 (fuchaku, 'adhesion') + 力 (ryoku, 'force'). The kanji 附 is a variant of 付 (attach), and 着 means 'stick' or 'adhere'.