#tactile properties

• Roughness — A sensation or property of a surface, material, or food of being rough, rugged, coarse, or lacking smoothness; a tactile characteristic of an object that scratches or opposes resistance to touch; in a gustatory sense, it describes an astringent, sour-bitter, or harsh sensation on the tongue (specific to young wines or unripe fruits); in a figurative sense, it refers to a harshness of character, severity, or hardness in behavior or expression.
• Rough — Presenting irregularities, prominences, or roughness to the touch, lacking smoothness and softness; producing an astringent, sour, bitter, or sharp sensation to the taste, or a strident, hoarse, and unpleasant sound to the hearing. In a figurative and moral sense, it describes a severe, rigid, unforgiving person, extremely harsh rules or punishments, or violent and hard-to-endure climatic phenomena (such as a harsh winter). In folk ichthyology, it can also denote the asprete fish.