suppressorn.
/səˈprɛsə/, U.S. /səˈprɛsər/ 1. A person who or a thing which suppresses (in various senses of the verb). Cf. suppressant n.
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the world > existence and causation > creation > destruction > [noun] > crushing, stifling, or overwhelming > one who or that which
quenchera1382
hammer1382
suppresser1543
suppressor1560
quench-coal1615
pulverizer1635
stifler1642
smotherer1648
queller1804
overwhelmer1807
cold douche1835
squelcher1854
putter-down1869
steamroller1896
society > authority > subjection > subjecting or subjugation > [noun] > suppression or repression > one who
suppressor1560
repressor1584
1560 in A. Macdonald & J. Dennistoun Misc. Maitland Club (1843) III. ii. 217 The Pape quhai is the verray Antichriste and suppressour of Godis glorie.
?1573 T. W. tr. Answer Let. Duke of Alba sig. F.ivv We trust that..our soueraing Lord,..wil of his natural clemencie graunt vs, that we being deliuered from these tyrants & suppressors.
1632 W. Lithgow Totall Disc. Trav. ix. 388 He was no suppressour of the subiects.
a1682 Sir T. Browne Christian Morals (1716) i. 13 Humility and Charity, the great Suppressors of Envy.
1711 E. Ward Vulgus Britannicus (ed. 3) iii. 91 And so from a Rude Mob became, The fierce Suppressors of the same.
1759 R. Spearman Lett. to Friend ii. 90 He was a general redresser of grievances, and suppressor of robbers, tyrants, and oppressors.
1809 Ld. Byron Eng. Bards & Sc. Reviewers 632 Whet not your scythe, suppressors of our vice! Reforming saints!
1868 E. A. Freeman Hist. Norman Conquest II. viii. 194 Rudolf of Ivry..the savage suppressor of the great peasant revolt.
1915 Times 29 Oct. 7/1 The strong-handed suppressor of organized labour troubles.
1962 Amateur Gardening 27 Jan. 4 Tiarella cordifolia and..T. Wherryi are good weed suppressors.
2002 New Scientist 9 Nov. 34/2 Whatever your needs, there is a medicine tailored for you—suppressors to stop dry coughs, demulcents to soothe a tickly throat, [etc.].
2. Genetics. A gene mutation (or, esp. in early use, a chromosomal duplication, etc.) that totally or partially reverses the phenotypic effect of a previous mutation at a different site. Frequently attributive, in suppressor gene, suppressor mutation, etc.
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the world > life > biology > biological processes > genetic activity > genetic components > [noun] > gene > types of gene
sex determinant1902
sex determiner1909
inhibitor1911
multiple factor1912
modifier1915
autosomal dominant1919
autosomal recessive1919
scute1923
gene1925
suppressor1928
rate gene1932
dominigene1938
buffer1939
polygene1941
switch gene1942
mutator1943
oligogene1943
sickle cell gene1946
supergene1949
ob1950
obese1950
regulator1960
regulator gene1960
regulatory gene1960
enhancer1967
oncogene1969
virogene1969
hedgehog1980
1928 Zeitschr. f. Induktive Abstammungs- u. Vererbungslehre 46 85 (heading) The genetics of ‘black suppressor’ in Drosophila melanogaster.
1932 Amer. Naturalist 66 329 These suppressors have been proved to be recessive mutant genes by the use of a duplication involving the locus of the suppressor.
1966 Ann. Rev. Microbiol. 20 409 The best characterized and most intensively studied of the suppressor mutations which affect the translation process are the suppressors of the two classes of mutants, ‘amber’ and ‘ochre’.
1988 F. Crick What Mad Pursuit (1990) xii. 125 Some mutants should have distant ‘suppressors’, as they are called, within the same gene.
2011 Lewin's Genes X xxv. 722/2 The secondary suppressor mutation changes the anticodon of a tRNA, so that it recognizes the mutant codon instead of (or as well as) its original target codon... The suppressors are described as nonsense suppressors or missense suppressors, depending on the nature of the original mutation.
3. A device for preventing a machine or part to which it is fitted from causing electrical interference.
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the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > prevention of interference > [noun] > device for
screen1878
shield1919
suppressor1930
interference suppressor1951
1930 Engineering 14 Nov. 626/1 A diagram..is given in Fig. 16, the transmitting and receiving suppressors being marked TS1 and TS2.
1948 Electronic Engin. 20 95 An ignition suppressor for fitting in the H.T. supply lead from the coil.
1955 Times 31 Aug. 5/1 Everyone..should beware of people who told them that all appliances must now be suppressed, especially if they were trying to sell suppressors.
2005 G. Vasilescu Electronic Noise & Interfering Signals viii. 260 It can be reduced by using spark plugs with a built-in interference suppressor.
4. Electronics. = suppressor grid n. at Compounds.
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the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [noun] > grid
grid1907
screen1914
screened grid1927
screen grid1927
suppressor grid1931
suppressor1932
1932 Proc. IRE 20 1253 In the older use of the pentode with the suppressor at the same potential as the cathode there is negligible space charge between screen and suppressor.
1959 Chambers's Encycl. XIV. 241/1 The two control grids in a frequency changer are usually the first and third from the cathode, the other grids being screens, accelerators and suppressors.
1968 H. A. Romanowitz & R. E. Puckett Introd. to Electronics vi. 237 The suppressor is usually connected to the cathode and is thus at full negative potential with respect to the plate.
2004 T. H. Lee Design CMOS Radio-Frequency Integrated Circuits (ed. 2) i. 29 The suppressor is normally held at cathode potential.
Compounds
suppressor cell n. Immunology a cell that suppresses some aspect of the functioning of the immune system; spec. (more fully suppressor T cell) any of a class of T lymphocytes which reduce the magnitude of humoral or cell-mediated immune responses.
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the world > life > biology > substance > process stimulators or inhibitors > other stimulators or inhibitors > [noun] > immunosuppressant
suppressor cell1962
immunosuppressant1968
1962 Jrnl. Allergy & Clin. Immunol. 69 100 These results suggest that Ag-S [= antigen-adherent] cells were enriched for suppressor cells specific for Ag in patients receiving immunotherapy.
1972 Jrnl. Immunol. 108 590/1 It is possible that there are separate populations of activator (x) and suppressor (y) T cells.
1993 Vanity Fair Nov. 53/2 It is conceivable that there is a population of cells called suppressor cells which is helping to keep the disease in check.
1995 L. Garrett Coming Plague (new ed.) xii. 404 It seemed that suppressor T cells, which were in astonishing abundance, were stifling the rabbits' antibody response.
2010 N.Y. Times (Nexis) 3 May b11 Dr. Tada became a leading advocate for the unpopular view that the suppressor cell would be found in time.
suppressor grid n. Electronics (in a thermionic valve or vacuum tube, esp. a pentode) a coarse grid situated between electrodes, typically the screen grid and the anode, so as to repel secondary electrons emitted by the anode.
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the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [noun] > grid
grid1907
screen1914
screened grid1927
screen grid1927
suppressor grid1931
suppressor1932
1931 Electronics Nov. 176/2 In order to avoid the effects of secondary emission from the plate..an auxiliary electrode was inserted to suppress this secondary current. The advantages of this same sort of suppressor grid are utilized in the..power pentode design.
1974 P. K. Harvey & K. J. Bohlman Stereo F.M. Radio Handbk. ii. 13 If a modulating signal is now applied, the bias on the suppressor grid is alternately raised and lowered in sympathy with the modulating signal.
2000 C. E. Miller Valve Radio & Audio Repair Handbk. (ed. 2) xi. 61/2 Another valve..is the octode, in which an extra grid (G6) is placed between G5 and anode, where it acts like the suppressor grid in a pentode.
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
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