harmonogramn.
/hɑːˈmɒnəɡram/ A figure or curve drawn by a harmonograph.
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the world > matter > physics > science of sound > vibration > instrument for analysing vibration > [noun] > with visible output > as graph or diagram > graph or diagram
harmonogram1902
spectrogram1939
sound spectrogram1945
sonogram1950
audiospectrogram1957
sound print1969
audiospectrograph1992
1902 Pearson's Mag. Apr. 445/1 Not only can an infinity of varying harmonograms be produced with one ratio of pendulum length, but the ratio can be altered.
1962 R. Quirk Use of Eng. (dust-jacket) The Harmonogram illustrated on this jacket is Crown Copyright, Science Museum, London.
This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2018).
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n.1902