intrusiveadj.n.

Brit.

/ɪnˈtruːsɪv/, U.S.

/ᵻnˈtrusɪv/

Etymology: < Latin intrūs-, participial stem of intrūdĕre to intrude v. + -ive suffix.

A. adj.

1. Of intruding character; characterized by coming or entering in an encroaching manner, or without invitation or welcome; done or carried out with intrusion.

ΘΚΠ

the world > movement > motion in a certain direction > going or coming in > [adjective] > in unwelcome or unwarranted manner > characterized by

intrusive1647

intrusional1864

the world > action or operation > doing > activity or occupation > acting in another's business or intervention > [adjective] > intruding or interfering

intruding1603

intrusive1647

inbearinga1800

the world > action or operation > behaviour > bad behaviour > discourtesy > [adjective] > obtruding oneself

obtrusive1652

protrusive1841

intrusive1891

1647 M. Hudson Divine Right Govt. ii. iv. 98 Every Polarchical action in the Polarchs..being rebellious and intrusive.

1735 J. Thomson Antient & Mod. Italy Compared: 1st Pt. Liberty 299 No mighty moles the big intrusive storm, From the calm stations roll resounding back.

1813 W. Scott Rokeby i. xxx. 44 Still he turned impatient ear From Truth's intrusive voice severe.

1891 E. Peacock Narcissa Brendon I. 175 He was not shy, but did not wish to be intrusive.

a. That has been intruded or thrust in.

ΘΚΠ

the world > existence and causation > existence > intrinsicality or inherence > introduction or bringing in > [adjective] > intrusive or intruded

intruded1562

insinuated1605

intrusive1862

1862 G. P. Marsh Lect. Eng. Lang. (new ed.) ii. 34 An intrusive element in a language is confined to the vocabulary and minor grammatical forms.

1897 T. C. Allbutt et al. Syst. Med. IV. 476 Large quantities of this intrusive substance strangling the secreting textures.

1900 I. Taylor in Notes & Queries 9th Ser. V. 483/1 The n in Pentland Firth is intrusive, while the Pentland Hills were Penland, the t being intrusive and the n radical.

b. Geology. Of an igneous rock: Forced, while in a state of fusion, into cavities or fissures of other rocks.

ΘΚΠ

the world > the earth > structure of the earth > structural features > discontinuity or unconformity > [adjective] > intrusive

subsequent1789

intruded1833

intrusive1844

anogenic1878

secretionary1888

lit-par-lit1896

stoped1932

1844 C. Darwin Geol. Observ. (1876) ii. 513 The number and bulk of the intrusive masses of different coloured porphyries..is truly extraordinary.

1858 A. Geikie Story of Boulder xii. 241 The intrusive traps occur in the form of walls and veins.

1876 D. Page Adv. Text-bk. Geol. (ed. 6) iv. 85 When igneous matter appears to have thrust itself between certain strata in wedge-shaped or sheet-like masses, it is spoken of as intrusive.

c. intrusive r, an r introduced unexpectedly in writing or speech, spec. one pronounced in hiatus, as in the phrase the idea(r) of or in draw(r)ing.

ΘΚΠ

the mind > language > linguistics > study of speech sound > speech sound > speech sound by manner > [noun] > sonant > liquid > trill > intrusive r

intrusive r1847

linking r1950

1847 H. F. Talbot Eng. Etymol. 46 A similar instance of the intrusive R is seen in the verb ‘to speak’, Germ. sprechen.

1887 Trans. Philol. Soc. 1885–6 3 The intrusive r has actually produced an additional syllable in modern English.

1909 O. Jespersen Mod. Eng. Gram. I. 372 In literature the intrusive r is frequently indicated as a characteristic mark of vulgarity; the oldest example, perhaps, is in Smollett.

1928 I. C. Ward Phonetics of English xiii. 130 There is no doubt that the intrusive r is spreading; even in districts where it has not been known, the younger generation is using it.

1944 Mycologia 36 79 Phlebiella Karst... Karsten spelled the name ‘Phlebriella’;..it is clear that the intrusive r is a lapsus calami.

1994 S. Romaine Lang. in Society iii. 70 The Shah of Iran becomes Shar of Iran. This phenomenon is known as ‘intrusive r’.

3. Inward-thrusting. rare.

ΘΚΠ

the world > space > direction > specific directions > [adjective] > having inward direction

inturning1382

inbenta1586

intrusive1847

inward1849

incurrent1851

indoor1874

1847 R. Willis tr. Harvey Generat. Animals lii, in Wks. 383 I straightway perceived a certain protuberant fleshy part, affected with an alternating extrusive and intrusive movement.

B. n. Geology.

An intrusive rock or rock mass.

ΘΚΠ

the world > the earth > structure of the earth > structural features > discontinuity or unconformity > [noun] > intrusion

intrusion1839

intrusive1895

emplacement1914

pluton1934

facies1965

1895 A. Harker Petrol. vii. 87 Acid intrusives. The acid intrusive rocks embrace a considerable range of varieties.

1925 N. E. Odell in E. F. Norton et al. Fight for Everest: 1924 300 Yet the character of the former [sc. the limestone series] may be entirely due to its proximity to the hard crystalline rocks and its alteration brought about by pressure against them, if not also by their igneous intrusives.

1962 W. T. Huang Petrol. iii. 51 It [sc. magma] may be solidified at great depth, forming such large intrusives as batholiths, stocks, and lopoliths.

1968 J. Gilluly et al. Princ. Geol. (ed. 3) xviii. 435 (caption) Devil's Tower, Wyoming, probably a volcanic plug, but perhaps part of a roofed intrusive.

This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2022).

单词	intrusive
释义	intrusiveadj.n. Brit. /ɪnˈtruːsɪv/, U.S. /ᵻnˈtrusɪv/ Etymology: < Latin intrūs-, participial stem of intrūdĕre to intrude v. + -ive suffix. A. adj. 1. Of intruding character; characterized by coming or entering in an encroaching manner, or without invitation or welcome; done or carried out with intrusion. ΘΚΠ the world > movement > motion in a certain direction > going or coming in > [adjective] > in unwelcome or unwarranted manner > characterized by intrusive1647 intrusional1864 the world > action or operation > doing > activity or occupation > acting in another's business or intervention > [adjective] > intruding or interfering intruding1603 intrusive1647 inbearinga1800 the world > action or operation > behaviour > bad behaviour > discourtesy > [adjective] > obtruding oneself obtrusive1652 protrusive1841 intrusive1891 1647 M. Hudson Divine Right Govt. ii. iv. 98 Every Polarchical action in the Polarchs..being rebellious and intrusive. 1735 J. Thomson Antient & Mod. Italy Compared: 1st Pt. Liberty 299 No mighty moles the big intrusive storm, From the calm stations roll resounding back. 1813 W. Scott Rokeby i. xxx. 44 Still he turned impatient ear From Truth's intrusive voice severe. 1891 E. Peacock Narcissa Brendon I. 175 He was not shy, but did not wish to be intrusive. 2. a. That has been intruded or thrust in. ΘΚΠ the world > existence and causation > existence > intrinsicality or inherence > introduction or bringing in > [adjective] > intrusive or intruded intruded1562 insinuated1605 intrusive1862 1862 G. P. Marsh Lect. Eng. Lang. (new ed.) ii. 34 An intrusive element in a language is confined to the vocabulary and minor grammatical forms. 1897 T. C. Allbutt et al. Syst. Med. IV. 476 Large quantities of this intrusive substance strangling the secreting textures. 1900 I. Taylor in Notes & Queries 9th Ser. V. 483/1 The n in Pentland Firth is intrusive, while the Pentland Hills were Penland, the t being intrusive and the n radical. b. Geology. Of an igneous rock: Forced, while in a state of fusion, into cavities or fissures of other rocks. ΘΚΠ the world > the earth > structure of the earth > structural features > discontinuity or unconformity > [adjective] > intrusive subsequent1789 intruded1833 intrusive1844 anogenic1878 secretionary1888 lit-par-lit1896 stoped1932 1844 C. Darwin Geol. Observ. (1876) ii. 513 The number and bulk of the intrusive masses of different coloured porphyries..is truly extraordinary. 1858 A. Geikie Story of Boulder xii. 241 The intrusive traps occur in the form of walls and veins. 1876 D. Page Adv. Text-bk. Geol. (ed. 6) iv. 85 When igneous matter appears to have thrust itself between certain strata in wedge-shaped or sheet-like masses, it is spoken of as intrusive. c. intrusive r, an r introduced unexpectedly in writing or speech, spec. one pronounced in hiatus, as in the phrase the idea(r) of or in draw(r)ing. ΘΚΠ the mind > language > linguistics > study of speech sound > speech sound > speech sound by manner > [noun] > sonant > liquid > trill > intrusive r intrusive r1847 linking r1950 1847 H. F. Talbot Eng. Etymol. 46 A similar instance of the intrusive R is seen in the verb ‘to speak’, Germ. sprechen. 1887 Trans. Philol. Soc. 1885–6 3 The intrusive r has actually produced an additional syllable in modern English. 1909 O. Jespersen Mod. Eng. Gram. I. 372 In literature the intrusive r is frequently indicated as a characteristic mark of vulgarity; the oldest example, perhaps, is in Smollett. 1928 I. C. Ward Phonetics of English xiii. 130 There is no doubt that the intrusive r is spreading; even in districts where it has not been known, the younger generation is using it. 1944 Mycologia 36 79 Phlebiella Karst... Karsten spelled the name ‘Phlebriella’;..it is clear that the intrusive r is a lapsus calami. 1994 S. Romaine Lang. in Society iii. 70 The Shah of Iran becomes Shar of Iran. This phenomenon is known as ‘intrusive r’. 3. Inward-thrusting. rare. ΘΚΠ the world > space > direction > specific directions > [adjective] > having inward direction inturning1382 inbenta1586 intrusive1847 inward1849 incurrent1851 indoor1874 1847 R. Willis tr. Harvey Generat. Animals lii, in Wks. 383 I straightway perceived a certain protuberant fleshy part, affected with an alternating extrusive and intrusive movement. B. n. Geology. An intrusive rock or rock mass. ΘΚΠ the world > the earth > structure of the earth > structural features > discontinuity or unconformity > [noun] > intrusion intrusion1839 intrusive1895 emplacement1914 pluton1934 facies1965 1895 A. Harker Petrol. vii. 87 Acid intrusives. The acid intrusive rocks embrace a considerable range of varieties. 1925 N. E. Odell in E. F. Norton et al. Fight for Everest: 1924 300 Yet the character of the former [sc. the limestone series] may be entirely due to its proximity to the hard crystalline rocks and its alteration brought about by pressure against them, if not also by their igneous intrusives. 1962 W. T. Huang Petrol. iii. 51 It [sc. magma] may be solidified at great depth, forming such large intrusives as batholiths, stocks, and lopoliths. 1968 J. Gilluly et al. Princ. Geol. (ed. 3) xviii. 435 (caption) Devil's Tower, Wyoming, probably a volcanic plug, but perhaps part of a roofed intrusive. This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2022). < adj.n.1647
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