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.
Eugenol is a clear to pale yellow liquid that has a spicy clove-like aroma. Eugenol, a naturally occurring substance found in many plants, is used to make fragrances and flavors. In cosmetics and personal care products, Eugenol is used in the formulation of aftershave lotions, bath products, bubble baths, fragrances, hair care products, moisturizers, shampoos and skin care products.