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.
Eugenics, the set of beliefs and practices which aims at improving the genetic quality of the human population, played a significant role in the history and culture of the United States prior to its involvement in World War II. Eugenics was practiced in the United States many years before eugenics programs in Nazi Germany, which were largely inspired by the previous American work. Stefan KÃ¼hl has documented the consensus between Nazi race policies and those of eugenicists in other countries ...