omentum Folds of the peritoneum (membrane lining the abdominal cavity) that connect the stomach with other abdominal organs. ophthalmia neonatorum (infantile purulent conjunctivitis) Various forms of conjunctivitis in newborns, usually contracted during birth from passage through the infected birth canal of the mother. orchitis Inflammation of the testes, often the result of mumps or other infection, trauma, or metastasis. organdy (organdie) Stiff transparent fabric of cotton or silk, used for trim, curtains, and light apparel. Origanum Marjoram. Genus of mint-like plants (Origanum). The sweet marjoram (O. Majorana) is aromatic and fragrant, and used in cooking. The wild marjoram of Europe and America (O. vulgare) is less fragrant. orris Several species of iris with a fragrant rootstock, especially Iris germanica, used in perfumes and cosmetics. panada Paste or gruel of bread crumbs, toast, or flour combined with milk, stock, or water; used for soups or thickening sauces. Paralysis Agitans (Parkinson's disease, shaking palsy) Progressive nervous disease causing destruction of brain cells that produce dopamine, muscular tremor, slowing of movement, partial facial paralysis, peculiarity of gait and posture, and weakness. paregoric A camphorated tincture of opium, taken internally for the relief of diarrhea and intestinal pain Paris green Poisonous emerald-green powder, C4H6As6Cu4O16, used as a pigment, insecticide, and wood preservative. pedicle (pedicel) Small stalk or stalk-like structure, especially one supporting or connecting an organ or other body part. Slender foot-like part, as at the base of a tumor. pell mell Jumbled, confused manner; helter-skelter; frantic disorderly haste; headlong: pemphigus Several acute or chronic skin diseases characterized by groups of itching blisters. pennyroyal Eurasian mint (Mentha pulegium) with small lilac-blue flowers that yield an aromatic oil. Aromatic plant (Hedeoma pulegioides) of eastern North America, having purple-blue flowers that yields an oil used as an insect repellent peptonize Convert protein into a peptone (water-soluble protein derivative produced by partial hydrolysis of a protein by an acid or enzyme ). Dissolve (food) by means of a proteolytic enzyme. pernicious anemia (Addison's anemia, malignant anemia.) Severe anemia in older adults, caused by failure absorb vitamin B12; causes abnormally large red blood cells, gastrointestinal disturbances, and lesions of the spinal cord. pharyngitis Inflammation of the pharynx. phenacetine (phenacetin) White, crystalline compound, C10H13O2N, used as an antipyretic. phlox North American plants of the genus Phlox, having opposite leaves and flowers.