noun
adhesion; stickiness; viscosity
Technical term for the property of a substance to stick or adhere; used in physics, chemistry, and materials science.
このテープは粘着性が高い。
This tape has high adhesion.
粘着性のある物質は
Substances with stickiness tend to adhere to surfaces.
接着性 emphasizes bonding strength between surfaces, often used in adhesives and engineering, whereas 粘着性 is broader and includes tackiness and viscosity.
Compound of 粘着 (nenchaku, 'adhesion') + 性 (-sei, '-ness, property'). The exact historical derivation is uncertain, but the kanji 粘 (sticky) and 着 (attach) are conventionally associated with the meaning.