ell: Ένωση συνόλων

Information
has URI	http://lexvo.org/id/term/ell/%CE%88%CE%BD%CF%89%CF%83%CE%B7%20%CF%83%CF%85%CE%BD%CF%8C%CE%BB%CF%89%CE%BD

Meaning
means	(noun) a set containing all and only the members of two or more given sets; "let C be the union of the sets A and B" union, join, sum