graduatorn.
/ˈɡradʒʊeɪtə/, /ˈɡradjʊeɪtə/, U.S. /ˈɡrædʒʊˌeɪdər/ One who or that which graduates.
a. One who graduates (see graduate v. 4) glasses, instruments, etc.
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1898 Daily News 24 Sept. 10/6 Glass Graduator (Medical) wanted.
b. An instrument for dividing any line, whether straight or curved, into small regular portions; a dividing-engine.
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1828–32 N. Webster Amer. Dict. Eng. Lang. Graduator, an instrument for dividing any line, right or curve, into equal parts.
c. A contrivance for concentrating a solution by means of rapid evaporation.
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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
1839 A. Ure Dict. Arts 618 These tubes serve to allow the air..to circulate freely through the graduator [in vinegar making].
This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2022).
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n.1828