diffusern.

Brit.

/dᵻˈfjuːzə/, U.S.

/dᵻˈfjuzər/

Origin: Formed within English, by derivation. Etymons: diffuse v., -er suffix¹.

Etymology: < diffuse v. + -er suffix¹. Compare classical Latin diffūsor person who draws off liquid into smaller vessels (attested in an inscription).

1. gen. A person who or thing which spreads or disperses something (esp. an abstract or immaterial thing); a disseminator.

ΘΚΠ

society > communication > information > publishing or spreading abroad > [noun] > person who

publisherc1453

bruiter1535

dissipater1537

spreader1542

utterer1549

setter-outc1553

disperser1580

seed carrier1602

divulger1606

propagator1610

promulgera1635

dispreader1636

divulgater1637

promulgater1637

diffuser1645

promulgator1648

disseminator1667

circulator1792

vulgarizer1899

forthteller1920

vulgarisateur1933

1645 P. Sterry Spirit Convincing of Sinne 9 The Spirit, the diffuser, the discoverer of..love in the bosome of man.

1681 T. Manningham Two Disc. 32 Diffusers of secular learning.

1715 W. Kennett Wisdom of Looking Backward 217/1 Those..whose Office it is under Christ to be Diffusers and Supporters of Loyal Religion.

1797 W. Taylor in Monthly Rev. 22 545 The diffusers, not the inventors, of their unprincipled principles.

1850 Economist 28 Sept. 1070/1 The Bank of England..is but the reservoir and the diffuser of the savings and capital of..thousands of merchants and dealers.

1865 D. Page Handbk. Geol. Terms (ed. 2) 97 Increasing in density as we approach the earth, it [sc. the atmosphere] becomes, as it were, the retainer and equable diffuser of the sun's rays.

1893 Arena (Boston) Nov. 707 Promoter of purity, diffuser of sweetness and light.

1913 J. A. Macy Spirit Amer. Lit. ix. 161 That is part of their service as humanists, diffusers of culture.

1967 Jrnl. Higher Educ. 38 131 The teacher is viewed as merely a diffuser of knowledge.

2010 D. Panzac in M. Fusaro et al. Trade & Cultural Exchange in Early Mod. Mediterranean iii. 54 The most frequent, significant and best-known diffuser of the disease was the black rat.

2. A device for diffusing or dispersing something, as light, a current of air, steam, etc.

ΘΚΠ

the world > space > extension in space > spreading or diffusion > [noun] > device for diffusing

diffuser1813

1813 Trans. Soc. Arts, Manuf., & Commerce 30 185 The steam-pipe is made to enter an inch above the bottom [of the boiler], and to extend itself horizontally to the centre of the same, when with the view of equally diffusing the heat, a piece of coarse linen..is placed over it. This may be called the diffuser.

1884 Internat. Health Exhib. Official Catal. 114/1 Patent inlets and air diffusers for buildings.

1891 Truth 10 Dec. 1242/1 The burners were shaded with the new bead ray diffusers.

1952 G. F. Hervey & J. Hems Freshwater Trop. Aquarium Fishes viii. 101 The flow of air should be reduced to a minimum, and the air-bubbles still further broken up by placing the diffuser under a large bunch of Fontinalis.

1987 Hair Autumn 83/1 A diffuser is a large, cup-shaped attachment that fits onto the nozzle of the hairdryer.

2006 Independent 22 Mar. (Property section) 22/2 A clear dome installed on the roof will pipe natural daylight into your house via a flexible tube connected to a diffuser, to light almost any internal space.

3. Engineering. A duct or chamber, typically used in compressors and turbines, designed to increase the cross-sectional area of the flow of a fluid passing through it, esp. as a means of converting the velocity of the fluid into pressure.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > wire as conductor > [noun] > protective tube or trough

diffuser1847

wireway1875

conduit1882

duct1892

1847 U.S. Patent 5,090 1/1 The nature of my invention consists in..causing the water which is ejected from a water-wheel to be diffused gradually,..and hence I call this adjunct to the wheel which I have invented a ‘diffuser’.

1889 Jrnl. Assoc. Engin. Societies 8 528 This 88 per cent. wheel was one of Boyden's masterpieces... Of this 88 per cent. three per cent. was due to the use of the diffuser.

1946 J. G. Keenan Elem. Theory Gas Turbines & Jet Propulsion iv. 70 One object of the diffuser is to provide a smooth canalization of the flow from the impeller.

1961 N. C. Breddy Introd. Refrigeration i. 9 The kinetic energy of the gaseous refrigerant is now converted into pressure energy by means of the diffuser and delivered to the condenser.

2012 M. P. Boyce Gas Turbine Engin. Handbk. (ed. 4) i. 56 Most of the velocity leaving the impeller is converted into pressure energy in the diffuser.

This entry has been updated (OED Third Edition, March 2016; most recently modified version published online March 2022).

单词	diffuser
释义	diffusern. Brit. /dᵻˈfjuːzə/, U.S. /dᵻˈfjuzər/ Origin: Formed within English, by derivation. Etymons: diffuse v., -er suffix¹. Etymology: < diffuse v. + -er suffix¹. Compare classical Latin diffūsor person who draws off liquid into smaller vessels (attested in an inscription). 1. gen. A person who or thing which spreads or disperses something (esp. an abstract or immaterial thing); a disseminator. ΘΚΠ society > communication > information > publishing or spreading abroad > [noun] > person who publisherc1453 bruiter1535 dissipater1537 spreader1542 utterer1549 setter-outc1553 disperser1580 seed carrier1602 divulger1606 propagator1610 promulgera1635 dispreader1636 divulgater1637 promulgater1637 diffuser1645 promulgator1648 disseminator1667 circulator1792 vulgarizer1899 forthteller1920 vulgarisateur1933 1645 P. Sterry Spirit Convincing of Sinne 9 The Spirit, the diffuser, the discoverer of..love in the bosome of man. 1681 T. Manningham Two Disc. 32 Diffusers of secular learning. 1715 W. Kennett Wisdom of Looking Backward 217/1 Those..whose Office it is under Christ to be Diffusers and Supporters of Loyal Religion. 1797 W. Taylor in Monthly Rev. 22 545 The diffusers, not the inventors, of their unprincipled principles. 1850 Economist 28 Sept. 1070/1 The Bank of England..is but the reservoir and the diffuser of the savings and capital of..thousands of merchants and dealers. 1865 D. Page Handbk. Geol. Terms (ed. 2) 97 Increasing in density as we approach the earth, it [sc. the atmosphere] becomes, as it were, the retainer and equable diffuser of the sun's rays. 1893 Arena (Boston) Nov. 707 Promoter of purity, diffuser of sweetness and light. 1913 J. A. Macy Spirit Amer. Lit. ix. 161 That is part of their service as humanists, diffusers of culture. 1967 Jrnl. Higher Educ. 38 131 The teacher is viewed as merely a diffuser of knowledge. 2010 D. Panzac in M. Fusaro et al. Trade & Cultural Exchange in Early Mod. Mediterranean iii. 54 The most frequent, significant and best-known diffuser of the disease was the black rat. 2. A device for diffusing or dispersing something, as light, a current of air, steam, etc. ΘΚΠ the world > space > extension in space > spreading or diffusion > [noun] > device for diffusing diffuser1813 1813 Trans. Soc. Arts, Manuf., & Commerce 30 185 The steam-pipe is made to enter an inch above the bottom [of the boiler], and to extend itself horizontally to the centre of the same, when with the view of equally diffusing the heat, a piece of coarse linen..is placed over it. This may be called the diffuser. 1884 Internat. Health Exhib. Official Catal. 114/1 Patent inlets and air diffusers for buildings. 1891 Truth 10 Dec. 1242/1 The burners were shaded with the new bead ray diffusers. 1952 G. F. Hervey & J. Hems Freshwater Trop. Aquarium Fishes viii. 101 The flow of air should be reduced to a minimum, and the air-bubbles still further broken up by placing the diffuser under a large bunch of Fontinalis. 1987 Hair Autumn 83/1 A diffuser is a large, cup-shaped attachment that fits onto the nozzle of the hairdryer. 2006 Independent 22 Mar. (Property section) 22/2 A clear dome installed on the roof will pipe natural daylight into your house via a flexible tube connected to a diffuser, to light almost any internal space. 3. Engineering. A duct or chamber, typically used in compressors and turbines, designed to increase the cross-sectional area of the flow of a fluid passing through it, esp. as a means of converting the velocity of the fluid into pressure. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > wire as conductor > [noun] > protective tube or trough diffuser1847 wireway1875 conduit1882 duct1892 1847 U.S. Patent 5,090 1/1 The nature of my invention consists in..causing the water which is ejected from a water-wheel to be diffused gradually,..and hence I call this adjunct to the wheel which I have invented a ‘diffuser’. 1889 Jrnl. Assoc. Engin. Societies 8 528 This 88 per cent. wheel was one of Boyden's masterpieces... Of this 88 per cent. three per cent. was due to the use of the diffuser. 1946 J. G. Keenan Elem. Theory Gas Turbines & Jet Propulsion iv. 70 One object of the diffuser is to provide a smooth canalization of the flow from the impeller. 1961 N. C. Breddy Introd. Refrigeration i. 9 The kinetic energy of the gaseous refrigerant is now converted into pressure energy by means of the diffuser and delivered to the condenser. 2012 M. P. Boyce Gas Turbine Engin. Handbk. (ed. 4) i. 56 Most of the velocity leaving the impeller is converted into pressure energy in the diffuser. This entry has been updated (OED Third Edition, March 2016; most recently modified version published online March 2022). < n.1645
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