cello-

Combining form of Gr., koilia, cell. 1. Originally one of the compartments in a honeycomb; hence any chamber or enclosed hollow space; an areola, or loculus; in this sense comprising the following subordinate meanings: (A), any small completely closed space, such as the small cavities in the mastoid and other bones, the alveoli of the lungs, and the cleft like spaces or areolae of connective ti ue. (B), a cavity opening upon a free surface, such as the crypts in the stomach of the camel and other ruminants, the cavities in the nests of wasps and bees, the depre ion or loculus in the anther, which contains the pollen, and, by a slight extension of meaning, the spaces or areolae^ upon the wings of insects, circumscribed by the nervures. (C), in microscopical technology, a chamber, open or closed, used for the examination and preservation of objects. (D), one of the similar elements or open chambers which constitute a galvanic battery or a battery of Leyden jars. 2. The elementary structural unit of living ti ue, consisting of cytoplasm and nucleus, acid c. A c. secreting an acid, a delo morpho us c. Syn.: central c, chief c, peptic c, principal c. One of the epithelial cells forming the greater part of the lining membrane of the stomach, especially those of the pyloric region. They are supposed to secrete the pepsinogen. See delo morpho us c. adipose c. See fat c. air c. Syn.: air cavity (or sac, or receptacle, or space), pneumatic c. 1. A pulmonary air vesicle or alveolus; one of the ultimate saccules into which the lungs are divided. 2. An empty space in the body, communicating directly or indirectly with the lungs or air pa ages. In man the chief air c's are the mastoid and ethmoid c's and the frontal, maxillary, and sphenoidal sinuses, akinetic c. division. See direct c. division, alveolar c. One of the c's lining the acini of glands, alveolar c's in sputum, liow to recognize; see