extrusionn.

/ɛkˈstruːʒən/

Forms: Also 1500s extrution.

Etymology: Formed as if < Latin *extrūsiōn-em, noun of action < extrūdĕre : see extrude v.

The action of extruding or thrusting out; the fact of being extruded.

1. In physical sense:

a. The action of pushing out; expulsion by mechanical force.

b. Protrusion from within an envelope; the putting forth (e.g. of a bud or branch, an eruption, etc.).

ΘΚΠ

the world > movement > motion in a certain direction > going or coming out > letting or sending out > [noun] > expulsion or driving out > of a thing by mechanical force

extrusion1638

1638 W. Rawley tr. F. Bacon Hist. Nat. & Exper. Life & Death 84 In all Alimentation, or Nourishment, there is a two-fold Action; Extrusion, and Attraction.

1684 T. Burnet Theory of Earth i. 30 A violent depression of some parts of the earth, and an extrusion and elevation of others.

1839 R. I. Murchison Silurian Syst. i. xxxii. 436 This extrusion had been brought about by a succession of small upcasts.

1875 H. C. Wood Treat. Therapeutics (1879) 66 The extrusion of white blood-cells in the frog's mesentery.

c. The pressing of metals, plastics, etc., into the required shape by extruding them through dies; also, the article so extruded (see extrude v. 1d). Also attributive, esp. in extrusion press.

ΘΚΠ

society > occupation and work > industry > working with specific materials > working with metal > [noun] > pressing or drawing

presswork1896

pressworking1896

cupping1921

extrusion1921

extruding1930

stretch forming1951

1921 Chem. Abstr. 3967 Details as to the app. used and the method of extrusion are given. In complete extrusions the rod produced was sound from end to end.

1937 Archit. Rev. 81 267/3 Aluminium alloy extrusions are used for casement sections, door frames, etc.

1940 New Statesman 16 Mar. 360/1 Extrusion of metal is the same, in principle, as squirting tooth-paste or spaghetti, or, better still, macaroni.

1940 New Statesman 16 Mar. 360/1 An extrusion press can make bars with curved cross-sections and bars containing longitudinal holes.

1962 Newnes Conc. Encycl. Electr. Engin. 104/1 The sheath is applied [to an electric cable] through a point and die by means of a ram or continuous extrusion lead-sheathing press.

1964 M. Gowing Brit. & Atomic Energy 1939–45 xii. 338 New premises..must be provided for the extrusion work on the rods.

2. Expulsion by violent or rigorous measures from an abode, place, position of privilege, etc.

ΘΚΠ

the world > movement > motion in a certain direction > going or coming out > letting or sending out > [noun] > expulsion or driving out > specific people from a place, position, or possession

outputtinga1387

voidingc1435

ejectmentc1523

exposition1530

extrusion1540

ejection1566

expulse1567

Jack Drum1592

eviction1599

ousting1858

bounce1876

1540 T. Wyatt Let. xxiv, in K. Muir Life & Lett. (1963) 141 The tretise shold be folowd to th' extrusion from all theire dominions.

1593 Tell-Trothes New-yeares Gift 37 An vnkind extrution..of her out of dores.

1650 Exercitation conc. Usurped Powers 11 Meer forcible extrusion deprives not any lawfull Magistrate of his right.

1736 S. Sleech in H. Ellis Orig. Lett. Eminent Literary Men (1843) (Camden) 365 An unjust..Extrusion from his College.

1781 S. Johnson Congreve in Pref. Wks. Eng. Poets VI. 22 Upon the extrusion of the Whigs, some intercession was used lest Congreve should be displaced.

1875 C. Merivale Gen. Hist. Rome lxxix. 675 The extrusion of the people from the interior of the city.

1885 Manch. Examiner 10 Mar. 5/2 The extrusion of the hereditary principle.

This entry has not yet been fully updated (first published 1894; most recently modified version published online December 2020).

单词	extrusion
释义	extrusionn. /ɛkˈstruːʒən/ Forms: Also 1500s extrution. Etymology: Formed as if < Latin extrūsiōn-em, noun of action < extrūdĕre* : see extrude v. The action of extruding or thrusting out; the fact of being extruded. 1. In physical sense: a. The action of pushing out; expulsion by mechanical force. b. Protrusion from within an envelope; the putting forth (e.g. of a bud or branch, an eruption, etc.). ΘΚΠ the world > movement > motion in a certain direction > going or coming out > letting or sending out > [noun] > expulsion or driving out > of a thing by mechanical force extrusion1638 1638 W. Rawley tr. F. Bacon Hist. Nat. & Exper. Life & Death 84 In all Alimentation, or Nourishment, there is a two-fold Action; Extrusion, and Attraction. 1684 T. Burnet Theory of Earth i. 30 A violent depression of some parts of the earth, and an extrusion and elevation of others. 1839 R. I. Murchison Silurian Syst. i. xxxii. 436 This extrusion had been brought about by a succession of small upcasts. 1875 H. C. Wood Treat. Therapeutics (1879) 66 The extrusion of white blood-cells in the frog's mesentery. c. The pressing of metals, plastics, etc., into the required shape by extruding them through dies; also, the article so extruded (see extrude v. 1d). Also attributive, esp. in extrusion press. ΘΚΠ society > occupation and work > industry > working with specific materials > working with metal > [noun] > pressing or drawing presswork1896 pressworking1896 cupping1921 extrusion1921 extruding1930 stretch forming1951 1921 Chem. Abstr. 3967 Details as to the app. used and the method of extrusion are given. In complete extrusions the rod produced was sound from end to end. 1937 Archit. Rev. 81 267/3 Aluminium alloy extrusions are used for casement sections, door frames, etc. 1940 New Statesman 16 Mar. 360/1 Extrusion of metal is the same, in principle, as squirting tooth-paste or spaghetti, or, better still, macaroni. 1940 New Statesman 16 Mar. 360/1 An extrusion press can make bars with curved cross-sections and bars containing longitudinal holes. 1962 Newnes Conc. Encycl. Electr. Engin. 104/1 The sheath is applied [to an electric cable] through a point and die by means of a ram or continuous extrusion lead-sheathing press. 1964 M. Gowing Brit. & Atomic Energy 1939–45 xii. 338 New premises..must be provided for the extrusion work on the rods. 2. Expulsion by violent or rigorous measures from an abode, place, position of privilege, etc. ΘΚΠ the world > movement > motion in a certain direction > going or coming out > letting or sending out > [noun] > expulsion or driving out > specific people from a place, position, or possession outputtinga1387 voidingc1435 ejectmentc1523 exposition1530 extrusion1540 ejection1566 expulse1567 Jack Drum1592 eviction1599 ousting1858 bounce1876 1540 T. Wyatt Let. xxiv, in K. Muir Life & Lett. (1963) 141 The tretise shold be folowd to th' extrusion from all theire dominions. 1593 Tell-Trothes New-yeares Gift 37 An vnkind extrution..of her out of dores. 1650 Exercitation conc. Usurped Powers 11 Meer forcible extrusion deprives not any lawfull Magistrate of his right. 1736 S. Sleech in H. Ellis Orig. Lett. Eminent Literary Men (1843) (Camden) 365 An unjust..Extrusion from his College. 1781 S. Johnson Congreve in Pref. Wks. Eng. Poets VI. 22 Upon the extrusion of the Whigs, some intercession was used lest Congreve should be displaced. 1875 C. Merivale Gen. Hist. Rome lxxix. 675 The extrusion of the people from the interior of the city. 1885 Manch. Examiner 10 Mar. 5/2 The extrusion of the hereditary principle. This entry has not yet been fully updated (first published 1894; most recently modified version published online December 2020). < n.1540
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