precipitronn.
/prᵻˈsɪpᵻtrɒn/, U.S. /prəˈsɪpᵻˌtrɑn/ Now chiefly historical.
A kind of electrostatic precipitator for removing dust or other particulate matter from ventilating air.
ΘΚΠ
the world > matter > chemistry > equipment or apparatus > [noun] > miscellaneous apparatus
bain1477
speculum1650
filtering paper1651
wheel-fire1662
filter paper1670
sun furnace1763
respirator1789
candle-ball1794
rectifier1822
candle-bomb1823
filter1823
oxyhydrogen blowpipe1823
shade1837
graduator1839
pipette1839
thistle funnel1849
pressure tube1852
ozonizer1858
dialyser1861
Liebig condenser1861
Sprengel pump1866
Sprengel tube1866
water softener1867
mercury pump1869
Bunsen burner1870
dialysator1877
test-mixer1877
tube-condenser1877
Kipp1879
reflux condenser1880
policeman1888
converter1889
pressure boiler1891
spot plate1896
hydrogen electrode1898
sampler1902
reactor1903
fume-chamber1905
Permutit1910
microburner1911
salt bridge1915
precipitator1919
Raschig ring1920
microneedle1921
titrator1928
laboratory coatc1936
spray tower1937
precipitron1938
ion exchanger1941
potentiostat1942
chemostat1950
Knudsen pipette1951
pH-stat1956
cryopump1958
the world > physical sensation > cleanness and dirtiness > freedom from impurities > removal of impurities > removal of impurities from gas or vapour > [noun] > apparatus for
purificator?1813
purifier1834
wash-bottle1849
scrubber1853
washer1853
washing-bottle1857
precipitron1938
1938 Science 28 Jan. 10/1 Another device demonstrated by Dr. Thomas is called the Precipitron. It ‘electrocutes’ dust by charging it with electricity and then attracting the charged particles to a metal plate.
1952 Industr. & Engin. Chem. 44 1384/2 The use of the household-type Westinghouse precipitron..permits 1200 cubic feet of air to be handled per minute.
1990 I. S. Farkas-Conn From Documentation to Information Sci. 52 A successful company set up by Frederick Cotrell that was funnelling back money earned by the precipitron Cotrell had invented to support research and development on a nonprofit basis.
This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).
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n.1938