In the case of a post frame (or pole) building, wainscot has moved to the exterior of the building. In simple terms, it is the utilization of an alternate siding panel to cover the lower approximately three feet of the exterior walls.
Definition of parenchyma 1: the essential and distinctive tissue of an organ or an abnormal growth as distinguished from its supportive framework 2: a tissue of higher plants that consists of thin-walled living photosynthetic or storage cells capable of division even when mature and that makes up much of the substance of leaves and roots, the pulp of fruits, and parts of stems and supporting structures
This root word means 'cellular tissue.' Parenchyma is the most common form of tissue in plants and provides a variety of functions, including the storage of food and water. Collenchyma tissue helps support young stems and roots. Lastly, sclerenchyma tissue provides rigid support and protection for the plant stem.