**elliptic** — 1726, from Gk. elleiptikos pertaining to an ellipse, from elleipein (see ELLIPSIS (Cf. ellipsis)) … Etymology dictionary

**elliptic** — ► ADJECTIVE ▪ relating to or having the form of an ellipse. DERIVATIVES ellipticity noun … English terms dictionary

**Elliptic curve cryptography** — (ECC) is an approach to public key cryptography based on the algebraic structure of elliptic curves over finite fields. The use of elliptic curves in cryptography was suggested independently by Neal Koblitz[1] and Victor S. Miller[2] in 1985.… … Wikipedia

**Elliptic coordinates** — are a two dimensional orthogonal coordinate system in which the coordinate lines are confocal ellipses and hyperbolae. The two foci F {1} and F {2} are generally taken to be fixed at a and+a, respectively, on the x axis of the Cartesian… … Wikipedia

**Elliptic geometry** — (sometimes known as Riemannian geometry) is a non Euclidean geometry, in which, given a line L and a point p outside L, there exists no line parallel to L passing through p.Elliptic geometry, like hyperbolic geometry, violates Euclid s parallel… … Wikipedia

**Elliptic cylindrical coordinates** — are a three dimensional orthogonal coordinate system that results from projecting the two dimensional elliptic coordinate system in theperpendicular z direction. Hence, the coordinate surfaces are prisms of confocal ellipses and hyperbolae. The… … Wikipedia

**Elliptic cohomology** — defines a cohomology theory in the sense of algebraic topology. This term may refer to several different, though closely related, constructions, such as topological modular forms (i.e., tmf) or more classically a periodic ring spectrum equipped… … Wikipedia

**Elliptic Curve DSA** — (ECDSA) is a variant of the Digital Signature Algorithm (DSA) which operates on elliptic curve groups. As with elliptic curve cryptography in general, the bit size of the public key believed to be needed for ECDSA is about twice the size of the… … Wikipedia

**Elliptic chuck** — Elliptic El*lip tic, Elliptical El*lip tic*al, a. [Gr. ?: cf. F. elliptique. See {Ellipsis}.] 1. Of or pertaining to an ellipse; having the form of an ellipse; oblong, with rounded ends. [1913 Webster] The planets move in elliptic orbits. Cheyne … The Collaborative International Dictionary of English

**Elliptic compasses** — Elliptic El*lip tic, Elliptical El*lip tic*al, a. [Gr. ?: cf. F. elliptique. See {Ellipsis}.] 1. Of or pertaining to an ellipse; having the form of an ellipse; oblong, with rounded ends. [1913 Webster] The planets move in elliptic orbits. Cheyne … The Collaborative International Dictionary of English