† anacampticsn.
Obs.
1. The branch of Optics now called catoptrics (see catoptric n. 1).
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the world > matter > physics > electromagnetic radiation > light > reflection > [noun] > study of
catoptrics1570
anacamptics1696
catadioptrics1755
geometrical optics1835
fibre optics1956
1696 E. Phillips New World of Words (ed. 5) Anacamptics, a branch of Opticks call'd Catopticks.
1755 Johnson Dict. Eng. Lang. Anacampticks, the doctrine of reflected light, or catoptricks.
2. The branch of Acoustics, that relates to reflection of sound.
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the world > matter > physics > science of sound > [noun] > relating to reflection
phonocamptics1668
catacoustics1684
cataphonics1684
anacamptics1796
1796 C. Hutton Math. & Philos. Dict. Anacamptics, or the science of the reflections of sounds, frequently used in reference to echoes, which are said to be sounds produced anacamptically, or by reflection.
This entry has not yet been fully updated (first published 1884; most recently modified version published online March 2011).
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n.1696- feather-tongue
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