U`ni*cur"sal, a. Etym: [Uni- + L. currere, cursum, to run.] (Geom.)
Definition: That can be passed over in a single course; -- said of a curve when the coördinates of the point on the curve can be expressed as rational algebraic functions of a single parameter th.
Note: As th varies minus infinity to plus infinity, to each value of th there corresponds one, and only one, point of the curve, while to each point on the curve there corresponds one, and only one, value of th. Straight lines, conic sections, curves of the third order with a nodal point, curves of the fourth order with three double points, etc., are unicursal.
Source: Webster’s Unabridged Dictionary 1913 Edition
21 November 2024
(noun) a crossbar on a wagon or carriage to which two whiffletrees are attached in order to harness two horses abreast
International Coffee Day (September 29) is an occasion to promote and celebrate coffee as a beverage, with events occurring in places across the world. A day to promote fair trade coffee and raise awareness for the coffee growers’ plight. Other countries celebrate this event on October 1.
