单词 | retractile |
释义 | retractileadj.1 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 Of a part or organ: that can be withdrawn or pulled back into the body, retractable.Also in figurative context.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. 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 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). < |
随便看 |
|
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。