Merriam-Webster Collegiate Dictionary - transgenic

 I. adjective  Date: 1982 being or used to produce an organism or cell of one species into which one or more genes of another species have been incorporated a ~ mouse ~ crops; also produced by or consisting of ~ plants or animals  II. noun  Date: 1986  1. plural but singular in construction a branch of biotechnology concerned with the production of ~ plants, animals, and foods  2. a ~ plant or animal