(number theory) A mathematical function of integer a and odd positive integer b, generally written (a/b), based on, for each of the prime factors pᵢ of b, whether a is a quadratic residue or nonresidue modulo pᵢ.

plural of Jacoby transfer

(bridge) A convention in most bridge bidding systems initiated by responder following partner's no-trump opening bid that forces opener to rebid in the suit ranked just above that bid by responder.

plural of Jacobian

plural of jacobian

(mathematics) A famous problem on polynomials in several variables.

plural of Jacobian conjecture

(organic chemistry) An alkaloid found in ragwort (Jacobaea vulgaris).

Any hummingbird in the genus Florisuga.

plural of Jacobine