Category: S

The homeopathic doctrine that a drug producing pathological symptoms in those who are well will cure such symptoms in persons with disease.  

A crease on the palm of the hand, so termed because of its similarity to the transverse flexion crease found in some monkeys. Normally the palm of the hand at birth contains several flexion creases, two of which are separate and approx, transverse. When these two appear to fuse and thus form a single transverse…

An insect, Ctenolepisma longicaudata, whose scales are often found in house dust, are antigenic, and may be a cause of childhood and adult perennial allergies and asthma. This, house pest may be controlled with the use of insecticides.  

The photosensitive crystals in a radiographic film emulsion that, when exposed to ionizing radiation and developed, form an image.  

A type of pneumonoconiosis in which the inhaled particles contain silicates and iron.  

A compound of silicon, fluorine, and the fluoride of a metal.  

A disease that produces no clinically obvious symptoms or signs. Examples include hypertension, many forms of cancer (including small lesions of the breast and prostate cancer), and hearing loss, which may be either not noticed or denied by the individual. Many diseases begin silently, becoming obvious only when they are advanced,  

Any cortical area in the brain that on stimulation produces no detectable motor activity or sensory phenomenon, and in which a lesion may occur without producing detectable motor or sensory abnormalities.  

A sequence of base pairs in DNA that prevents the transcription of a gene.  

The use of sign language to communicate.