| retothelioma | <tumour> Old term for a neoplasm derived from reticular cells of the reticuloendothelial system. (05 Mar 2000) |
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| retouch | 1. To touch again, or rework, in order to improve; to revise; as, to retouch a picture or an essay. 2. <photography> To correct or change, as a negative, by handwork. Origin: Pref. Re- + touch: cf. F. Retoucher. Source: Websters Dictionary (01 Mar 1998) |
| retract | 1. To draw back; to draw up or shorten; as, the cat can retract its claws; to retract a muscle. 2. Ti withdraw; to recall; to disavow; to recant; to take back; as, to retract an accusation or an assertion. "I would as freely have retracted this charge of idolatry as I ever made it." (Bp. Stillingfleet) 3. To take back, as a grant or favor previously bestowed; to revoke. Synonym: To recal, withdraw, rescind, revoke, unsay, disavow, recant, abjure, disown. Origin: F. Retracter, L. Retractare, retractatum, to handle again, reconsider, retract, fr. Retrahere, retractum, to draw back. See Retreat. 1. To draw back; to draw up; as, muscles retract after amputation. 2. To take back what has been said; to withdraw a concession or a declaration. "She will, and she will not; she grants, denies, Consents, retracts, advances, and then files." (Granville) <veterinary> The pricking of a horse's foot in nailing on a shoe. Source: Websters Dictionary (01 Mar 1998) |
| retractation | The act of retracting what has been said; recantation. Origin: Cf. F. Retractation, L. Retractatio a revision, reconsideration. Source: Websters Dictionary (01 Mar 1998) |
| retracted publication | Designation of an article or book retracted in whole or in part by an author or authors or an authorised representative. It identifies a citation previously published and now retracted through a formal issuance from the author, publisher, or other authorised agent, and is distinguished from retraction of publication, which identifies the citation retracting the original published item. (12 Dec 1998) |
| retractile | <physiology> CApable of retraction; capable of being drawn back or up; as, the claws of a cat are retractile. Origin: Cf. F. -retractile. Source: Websters Dictionary (01 Mar 1998) |
| retractile testis | A testis that periodically disappears from the scrotum, as contrasted with an undescended testis. (05 Mar 2000) |
| retraction | 1. The act of drawing back, the condition of being drawn back. 2. Distal movement of teeth, usually accomplished with an orthodontic appliance. Origin: L. Retrahere = to draw back (18 Nov 1997) |
| retraction fibre | Thin projections from crawling cells associated with areas where the cell body is becoming detached from the substratum, but focal adhesions persist. Usually contain a bundle of microfilaments that are under tension. (18 Nov 1997) |
| retraction of publication | A statement issued by one or more authors of an article or a book, withdrawing or disavowing acknowledgment of their participation in performing research or writing the results of their study. In indexing, the retraction is sent to the editor of the publication in which the article appeared and is published under the rubric "retraction" or in the form of a letter. This publication type designates the author's statement of retraction: it should be differentiated from retracted publication which labels the retracted publication. (12 Dec 1998) |
| retraction syndrome | <syndrome> A retraction of the globe and pseudoptosis on attempted adduction; due to co-innervation of the horizontal recti. Sometimes there is an inability to abduct the affected eye (type 1), or adduct the affected eye (type 2), or both (type 3). Synonym: Duane's syndrome. (05 Mar 2000) |
| retractor | One who, or that which, retracts. Specifically: In breech-loading firearms, a device for withdrawing a cartridge shell from the barrel. <anatomy> A muscle serving to draw in any organ or part. Source: Websters Dictionary (01 Mar 1998) |
| retrad | Backward; toward the back part; directed posteriorly. Origin: L. Retro, backward, + ad, to (05 Mar 2000) |
| retrahens aurem | Retrahens auriculam See: posterior auricular muscle. Origin: L. Drawing back the ear, or auricle (05 Mar 2000) |
| retreat | 1. The act of retiring or withdrawing one's self, especially from what is dangerous or disagreeable. "In a retreat he otruns any lackey." (Shak) 2. The place to which anyone retires; a place or privacy or safety; a refuge; an asylum. "He built his son a house of pleasure, and spared no cost to make a delicious retreat." (L'Estrange) "That pleasing shade they sought, a soft retreat From sudden April showers, a shelter from the heat." (Dryden) 3. <astronomy> The retiring of an army or body of men from the face of an enemy, or from any ground occupied to a greater distance from the enemy, or from an advanced position. The withdrawing of a ship or fleet from an enemy for the purpose of avoiding an engagement or escaping after defeat. A signal given in the army or navy, by the beat of a drum or the sounding of trumpet or bugle, at sunset (when the roll is called), or for retiring from action. A retreat is properly an orderly march, in which circumstance it differs from a flight. 4. A special season of solitude and silence to engage in religious exercises. A period of several days of withdrawal from society to a religious house for exclusive occupation in the duties of devotion; as, to appoint or observe a retreat. Synonym: Retirement, departure, withdrawment, seclusion, solitude, privacy, asylum, shelter, refuge. Origin: F. Retraite, fr. Retraire to withdraw, L. Retrahere; pref. Re- re- + trahere to draw. See Trace, and cf. Retract, Retrace. Source: Websters Dictionary (01 Mar 1998) |