Pearl

(perl), i. In pharmacy, a small, gla globular body completely filled with liquid medicine. 2. A cataract; an opacity growing on the eye. 3. A peculiar arrangement of the epithelial cells. P. -barley. See Barley . P. Disease, a name for tuberculosis of serous membranes in the lower animals, especially cattle, given to it on account of the most manifest lesion, the pearly nodules or tumors, which are often pendulous. P., Epidermic, P., Epithelial, one of the spheroid concentric ma es of epithelial cells often seen in hard papillomata, in squamous epitheliomata and in cho les tea to mat a; they are also called pearly bodies. See Cell-nests. P. -eye, afflicted with cataract; an opacity of the crystalline lens of the eye. P. Tumor. Synonym of Cho les tea tom a. P. -white. Same as Bismuth-white and White Lead.