=Am-mo´ni-a.= A colorless alkaline gas, NH_{3}, of penetrating odor, and soluble in water, forming ammonia-water. Ammoniacal urine contains ammonia, which is one form of nitrogen excretion. =An-æ´mi-a.= A condition in which the blood is deficient in quantity or in quality. =An´æs-the´´si-a.= Loss of feeling or sensation, especially loss of tactile sensibility, though the term is used for loss of any of the other senses. =An´æs-thet´´ic.= 1. Without the sense of touch or of pain. 2. A drug that produces anæsthesia. =An´al-ge´´si-a.= Absence of sensibility to pain. =An-aph´ro-dis´´i-ac.= A drug that allays sexual desire. =An´a-sar´´ca.= An accumulation of serum in the cellular tissues of the body. =An´en-ceph´´al-ous.= Having no brain. =An´ky-lo´´sis.= Abnormal rigidity or stiffness of a joint. =An´o-dyne.= A medicine that relieves pain. =An´te par´tum.= Latin for “before delivery.” =An-te´ri-or.= Situated in front of, or in the forward part of. =An´ti-pe´ri-od´´ic.= A drug that tends to prevent recurrent attacks of disease. =An´ti-sep´´tic.= 1. Preventing decay or putrefaction. 2. A substance destructive to poisonous germs. =A-pe´ri-ent.= Mildly cathartic. =Ap-nœ´a.= The absence of respiration—especially that form which occurs in a child delivered by the Cæsarean operation. =A-re´o-la.= The darkish ring around the nipple. =As-ci´tes.= Dropsy (an accumulation of fluid) in the abdomen. =A-sep´sis.= Absence of septic matter, or freedom from infection. =As-phyx´i-a.= Suffocation. =As-trin´gent.= 1. Causing contraction and arresting discharges. 2. An agent that arrests discharges. =At´e-lec-ta´´sis.= Imperfect expansion of the lungs at birth; partial collapse of the lung. =At´on-y.= Lack of normal tone or strength. =A´tri-um.= (_L._, a hall.) The point of entrance of a bacterial disease. =At´ti-tude.= A posture or position of the body. The relation which the various parts of the child’s body bears to its own long axis. The attitude of the fœtus normally is complete flexion. =Aus´cul-ta´´tion.= The act of listening for sounds within the body. =Bac-te´ri-a.= The vegetable microorganisms (Schizomycetes) especially the short-rod forms. =Bal´an-i´´tis.= Inflammation of the glans penis. It is usually associated with phimosis. =Bal-lotte´ment.= The diagnosis of pregnancy by pushing up the uterus by a finger inserted into the vagina so as to cause the embryo to rise and fall again like a heavy body in water. =Bar´tho-lin glands.= The vulvo-vaginal glands. =Bleb.= A skin vesicle filled with fluid. A blister. =Breg´ma.= The point on the surface of the skull at the junction of the coronal and sagittal sutures. =Cæ-sa´re-an sec´tion.= (Named from Julius Cæsar, who is said to have been thus born). Delivery of the fœtus by an incision through the abdominal and uterine walls.