Cavity

(kav'-it-c). Any hollow, normal or pathologic. Among the normal cavities are the abdominal, arachnoid, axial, buccal, cranial, frontal, nasal, pelvic, pleural, thoracic, ventricular, etc.; among the abnormal are pulmonary and dental cavities. C. -plate, a term applied in mechan- Cebadilla (thev-ad-el'-yah). The seed of Asagreva officinal is, or Schainocaulon of ficin ale; official in the B. P., and important as the principal source of the alkaloid veratrin. It is highly poisonous.