| 释义 |
▪ I. retractile, a.1|rɪˈtræktɪl, -aɪl|
[a. F. rétractile, or ad. L. type *retractilis: see retract v.1 and -ile.]
Admitting of retraction; capable of being drawn in or back; exhibiting the function or power of retraction: a. of parts of animal or vegetable organisms (the usual application); spec. in Med., applied to a testis in the inguinal region that can readily be manipulated into the scrotum or vice versa.
1777Pennant Brit. Zool. IV. 51 Sea-Star,..furnished with five or more rays, and numerous retractile tentacula. 1808Wilson Amer. Ornith. I. 115 The tongue..is attached by a very elastic retractile membrane to the base of the right nostril. 1827D. Johnson Ind. Field Sports 55, I have heard it said that their claws are retractile. 1849Balfour Man. Bot. §59 The retractile hairs of Campanula. 1872Nicholson Palæont. 87 Round the circumference of the disc are placed numerous tentacles, usually retractile. 1938Spence & Scowen in Lancet 29 Oct. 983/2 We have used the following terms:—(1) Retractile testes... (2) Retained testes. 1968Turner & Bloodworth in J. M. B. Bloodworth Endocrine Path. xiii. 438/1 This has probably been due, in large part, to the failure of many observers to distinguish between the retractile testis and the true cryptorchid testis. 1977Lancet 24–31 Dec. 1361/1 The 2 other boys, 1 aged 10 years with small inguinal testes and the other aged 13½ years with one impalpable and one retractile testis, showed no improvement.
b. of bodies, parts of mechanism, etc.
1871Spencer Princ. Psychol. (1872) II. vi. xii. 156 Of bodies that resist in different modes..we have..the Retractile and Irretractile. 1879G. B. Prescott Sp. Telephone 26 The armature levers are retained in a definite position,..and no retractile spring whatever is required.
c. Med. (See quot.)
1896Allbutt's Syst. Med. I. 800 The urine in these cases contained albumin, which on precipitation settled at the bottom of the test-tube (retractile albuminuria).
▪ II. reˈtractile, a.2 rare.
[f. retract v.2, after prec.]
Exhibiting or evincing retractation.
1888R. W. Dixon Hist. Ch. Eng. xvii. III. 228 Cranmer himself published his Defence of the true and Catholic Doctrine of the Sacrament: a long treatise, with a characteristically retractile title. 1920H. G. Wells Outl. Hist. xxix. 327/2 Hadrian, his successor, was of a cautious and retractile disposition. |