† non-conˈcurrencyObs. [non- 1.] The quality of not running together in space. So † non-conˈcurringppl. a. a1696Scarburgh Euclid (1705) 31 The Attribute of these Strait Lines is Nonconcurrency.Ibid., The Geometrical Notion to be conceived under that name of Parellels is Nonconcurring Strait Lines.