/ev"euh looht'/ or, esp. Brit., /ee"veuh-/ , n. Geom.
the locus of the centers of curvature of, or the envelope of the normals to, another curve. Cf. involute (def. 5).
[ 1720-30; evolutus (ptp. of evolvere to roll out, unfold, EVOLVE) ]
/ev"euh looht'/ or, esp. Brit., /ee"veuh-/ , n. Geom.
the locus of the centers of curvature of, or the envelope of the normals to, another curve. Cf. involute (def. 5).
[ 1720-30; evolutus (ptp. of evolvere to roll out, unfold, EVOLVE) ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012