Freebase(0.00 / 0 votes)Rate this definition: Tongue. The tongue is a muscular hydrostat on the floors of the mouths of most vertebrates which manipulates food for mastication. It is the primary organ of taste, as much of the upper surface of the tongue is covered in papillae and taste buds.
1. eugenics-the study of methods of improving genetic qualities by selective breeding (especially as applied to human mating). bioscience, life science-any of the branches of natural science dealing with the structure and behavior of living organisms.
Top Definition. ginger. A human, characterized by pale skin, freckles and bright red hair. Gingers are generally considered to be inferior to their more melanin-rich brethren, and thus deservingly discriminated against. Gingers are thought to have no souls. The condition, gingervitis is genetic and incurable.