stethophonen.
/ˈstɛθəfəʊn/ A name given independently to two improved forms of stethoscope: see quots.
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the world > health and disease > healing > diagnosis or prognosis > examination > [noun] > auscultation > instruments used in
stethoscope1820
otophone1839
otoscope1849
stethophone1858
phonoscope1859
hydrophone1860
thoracoscope1895
fetoscope1939
phonoscope1959
1858 S. S. Alison in Proc. Royal Soc. 9 197 An instrument which I have invented..and which, as it is specially adapted for the auscultation of differences in the sounds of different parts of the chest, I have named the Differential Stethoscope, or Stethophone.
1897 Canadian Engin. Mar. 329 [Instrument invented by Rev. D. B. Marsh, Hamilton, Ont. (Canadian patent 24 Nov. 1896)].
This entry has not yet been fully updated (first published 1916; most recently modified version published online March 2018).
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n.1858