11-Letter Words Containing: P,A,Y,E,N,A

• hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance

• serving or intended to explain or make clear

• animal tissue that constitutes the essential part of an organ as contrasted with e.g. connective tissue and blood vessels

• the primary tissue of higher plants composed of thin-walled cells that remain capable of cell division even when mature; constitutes the greater part of leaves, roots, the pulp of fruits, and the pith of stems

• the physical condition of having the presence of an abnormally high level of carbon dioxide in the circulating blood

• Of or pertaining to parenchyma

• to an inexpressible degree

• a defect in brain development resulting in small or missing brain hemispheres

• by necessity