(亦作evolute curve)
- Mathematics a curve which is the locus of the centres of curvature of another curve (its involute)【数】渐屈线, 法包线。
- Zoology & Botany rolled outwards at the edges【动, 植】展开的, 外卷的：
an evolute shell.
外卷的壳。
词源
mid 18th cent.: from Latin evolutus, past participle of evolvere 'roll out' （see EVOLVE）.