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单词 retractile
释义

retractileadj.1

Brit. /rᵻˈtraktʌɪl/, U.S. /rəˈtræktl/
Origin: Formed within English, by derivation; perhaps modelled on a Latin lexical item, or perhaps modelled on a French lexical item. Etymons: retract v.1, -ile suffix.
Etymology: < retract v.1 + -ile suffix, probably after scientific Latin retractilis (1753 or earlier) or French rétractile (1770). In sense 3 after French rétractile (1880 in the source of quot. 1881 at sense 3). Compare earlier retractive adj.
1.
a. Chiefly Zoology. Of a part or organ: that can be withdrawn or pulled back into the body, retractable.Also in figurative context.
ΘΚΠ
the world > life > biology > physical aspects or shapes > physical arrangement or condition > [adjective] > eversible or retractable
retractile1769
eversible1856
introversible1883
1769 J. Berkenhout Outl. Nat. Hist. Great Brit. & Ireland I. 64 Acipenser. A single narrow Spiracle on each side. Mouth beneath, retractile, without Teeth.
1777 T. Pennant Brit. Zool. (ed. 4, quarto) IV. vi. 60 Sea-Star..furnished with five or more rays, and numerous retractile tentacula.
1808 A. Wilson Amer. Ornithol. I. 115 The tongue..is attached by a very elastic retractile membrane to the base of the right nostril.
1837 E. S. Wortley Impressions of Italy 284 Let him our will contentedly obey,..And walk in quiet, with retractile claws.
1872 H. A. Nicholson Man. Palæontol. 87 Round the circumference of the disc are placed numerous tentacles, usually retractile.
1931 K. M. Smith Textbk. Agric. Entomol. xi. 168 Ovipositor very long, retractile, aciculate, as long as abdomen and thorax when fully extended.
1993 V. E. Mitchell Windows on Lost World ix. 126 The creature had a long, retractile proboscis with a serrated edge for piercing its victim's flesh.
b. Medicine. Designating a testis that can move between the scrotum and the inguinal canal.
ΘΚΠ
the world > health and disease > ill health > a disease > disorders of internal organs > reproductive organ disorders > [adjective] > of male > disorders of testicles
orchitic1857
undescended1897
maldescended1908
retractile1937
1937 A. W. Spence & E. F. Scowen in Lancet 13 Mar. 663/1 We have taken especial care to identify the undescended and the retractile testis.
1949 H. Bailey Demonstr. Physical Signs Clin. Surg. (ed. 11) xxii. 270 If the testis is of the retractile type, it may be pushed into the scrotum.
1991 Endocrinol. & Metab. Clin. N. Amer. 20 231 Many nonscrotal testes are retractile and require no therapy whatsoever.
2. Of a bridge, spring, or other mechanical part or structure: that can be drawn or moved back or in; that retracts. Also: relating to or involving such a part or structure.
ΘΚΠ
the world > movement > motion in a certain direction > backward movement > [adjective] > capable of being drawn back
retractile1879
pullback1924
society > occupation and work > equipment > machine > parts of machines > mechanism > [adjective] > parts of
take-off1869
spring-loaded1871
retractile1879
gadgety1934
1815 W. Kirby & W. Spence Introd. Entomol. I. v. 149 The anus of the female is furnished with a tube of a corneous substance, consisting of four pieces, which, like the pieces of a telescope, are retractile within each other.
1825 Speeches Governors Legislature State of N.-Y. 234 The farm bridges ought to be formed on a retractile plan.
1855 H. Spencer Princ. Psychol. ii. xi. 210 Of bodies that resist in different modes as well as in different degrees, we have..the Retractile and Irretractile.
1879 G. B. Prescott Speaking Telephone (new ed.) 26 The armature levers are retained in a definite position,..and no retractile spring whatever is required.
1911 Trans. Amer. Inst. Electr. Engineers 30 1013 The stepping arm will return to its upper position due to the retractile spring.
1951 I. Asimov Stars like Dust iii. 32 The retractile iridium-steel lid which protected it [sc. the view-room]..had been sucked back.
1992 S. Sontag Volcano Lover i. iv. 63 He let his temperament, like a retractile bridge, slide open to let the big ship of a vision pass through.
3. Medicine. Designating albumin that flocculates in a urine sample (as a supposed indicator of disease); characterized by the presence of such albumin. Obsolete.
ΘΚΠ
the world > space > relative position > arrangement or fact of being arranged > state of being gathered together > [adjective] > gathering closely together > gathered closely together
clusteredc1400
sadc1450
constellated1638
constellatea1657
undistributed1869
retractile1881
clumped1887
nucleated1897
1881 Canad. Jrnl. Med. Sci. 6 57/1 Urine is said to contain retractile albumen when, upon the application of heat, the albumen separates in flocculi which contract, allowing the clear urine to be seen between and around the coagula.
1896 T. C. Allbutt et al. Syst. Med. I. 800 The urine in these cases contained albumin, which on precipitation settled at the bottom of the test-tube (retractile albuminuria).

Compounds

retractile activity n. Physiology and Medicine the ability to induce retraction or contraction, esp. of a fibrin clot.
ΚΠ
1961 Biochimica et Biophysica Acta 49 537 In many respects the ‘retractile’ activity of the platelets and its metabolic background resemble the conditions in muscle quite closely.
1976 European Jrnl. Cancer 12 823/2 It was therefore considered of interest to study the retractile activity of fibroblast-like cells.
1995 A. Macieira-Coelho Molecular Biol. Aging ix. 314 The decreased retractile activity of postnatal fibroblasts was apparent only in the resting phase.
retractile mesenteritis n. Medicine a disorder characterized by necrosis and inflammation of mesenteric adipose tissue, resulting in fibrosis and shortening of the mesentery.
ΚΠ
1920 Surg., Gynecol. & Obstetr. 31 171/1 There was revealed by a second operation adhesive epiploitis and retractile mesenteritis which did not fundamentally alter the intestinal physiology.
1971 Mt. Sinai Jrnl. Med. 38 388 Retractile mesenteritis is a rare disorder which involves shortening, thickening, and infiltration of the small bowel mesentery.
1998 Gastroenterology 114 1313 Retractile mesenteritis is a rare inflammatory mesenteric disorder that involves the intestine secondarily.
This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022).

retractileadj.2

Brit. /rᵻˈtraktʌɪl/, U.S. /rəˈtræktl/
Origin: Formed within English, by derivation. Etymons: retract v.2, -ile suffix.
Etymology: < retract v.2 + -ile suffix, probably after retractile adj.1
Now rare.
Of the nature of a retraction; having the effect of retracting or rescinding a former statement, undertaking, etc. Also: characterized by or prone to making retractions.In quot. 1837 with pun on retractile adj.1 (and claws).
ΘΚΠ
the mind > will > decision > irresolution or vacillation > reversal of or forsaking one's will or purpose > [adjective] > of nature of recantation
palinodical1602
palinodial1813
retractile1837
1837 E. S. Wortley Impressions of Italy 284 Our proposed..bill..Hath no retractile clause, but still is found Full armed to deal momentous changes round!
1871 Harper's Mag. Nov. 801 He was bland, affable, and kindly in manner, but still with something retractile about him, as of one oversensitive and on guard over too quick sympathies.
1888 R. W. Dixon Hist. Church Eng. (new ed.) III. xvii. 228 Cranmer himself published his Defence of the true and Catholic Doctrine of the Sacrament: a long treatise, with a characteristically retractile title.
1920 H. G. Wells Outl. Hist. xxix. 327/2 Hadrian, his successor, was of a cautious and retractile disposition.
This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022).
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adj.11769adj.21837
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