ell: Μετρικος χωρος

Information
has URI	http://lexvo.org/id/term/ell/%CE%9C%CE%B5%CF%84%CF%81%CE%B9%CE%BA%CE%BF%CF%82%20%CF%87%CF%89%CF%81%CE%BF%CF%82

Meaning
means	(noun) a set of points such that for every pair of points there is a nonnegative real number called their distance that is symmetric and satisfies the triangle inequality metric space