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STETHOSCOPE (Gr. orTJflos, chest, and aKmeiv, to look, examine), a medical instrument used in auscultation (q.v.). The single stethoscope is a straight wooden or metal tube with a flattened bell, the surface of which is usually covered with ivory or bone at the end which is placed against the body of the patient, and a small cup at the other' to fit the ear of the observer. In the " binaural " stethoscope, which has the advantage of flexibility, the tube is divided above the bell into two flexible tubes which lead to both ears.

Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)

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