What's the difference between retrace and retract?

Retrace


Definition:

  • (v. t.) To trace back, as a line.
  • (v. t.) To go back, in or over (a previous course); to go over again in a reverse direction; as, to retrace one's steps; to retrace one's proceedings.
  • (v. t.) To trace over again, or renew the outline of, as a drawing; to draw again.

Example Sentences:

  • (1) Thus it may be concluded that afferent inputs to the cortical transplants retrace normal cortical inputs.
  • (2) Finally we're turning back on ourselves, retracing our route down the coast, aiming for the rent-a-car in Punta del Este.
  • (3) By storing mass data for long periods, the NSA could develop the capability to recreate a reporter’s research, retrace a source’s movements and listen in on past communications, King warns.
  • (4) Since then, a team of the paper's reporters has been retracing every one of the 673 stories that Blair had filed during his four years on the Times.
  • (5) The 25-year-old's last journey, which started after she left work on 17 December, was retraced by an actor and filmed for BBC1's Crimewatch programme.
  • (6) They were soon able to verify their authenticity and, retracing the paintings' steps, they decided that the works in all probability were taken by the thieves by train from Paris to Turin, but were abandoned on board, possibly during border checks.
  • (7) The author begins by briefly retracing the causes and the evolution of sinistrosis.
  • (8) Stages of primary oocytes and follicles during ovarian development, and of maturing follicles during breeding cycles of some species, may retrace the phylogenetic progression of sizes of ancestral clutches and ripe follicles.
  • (9) PBS, ferritin, and IgG showed no such behavior at any of three pH values, and retraced their path of aggregation while dissociating on temperature reversal.
  • (10) The early origins of the concept of brain death have been retraced.
  • (11) The experiments in retracing evolution suggest, however, that the self-sequencing of amino acids was the evolutionary precursor of modern nucleic acid templating; the genetic memory is the molecule.
  • (12) After remembering to fill in the visitors’ book – and taking out any excess rubbish you can carry – carefully retrace your steps back down to the big boulder you left yesterday.
  • (13) When ships dock here from Antarctica and when daytrippers return after retracing Darwin’s trip across the Beagle Channel a surprising high proportion of passengers utter the same words: “Let’s go to the Irish pub!” The Dublin is no carbon copy from the motherland; instead it has a distinct local look – a shack-like structure, corrugated frontage (green, of course) and small-paned windows.
  • (14) After exploring the mill area, retrace your steps to Bridge Cottage and cross back over the little bridge, turn left and continue downstream on the river’s right bank.
  • (15) Based on his own essential contribution to the making of the guide to the city of Ludwigshafen the author retraces the various stages of conception.
  • (16) The reliability coefficient comparing the first tracings and measurements in the 19 cases that were retraced and remeasured was r = 0.993.
  • (17) This analysis is an attempt to retrace the missteps made since 9 August by five key players in the Ferguson crisis: St Louis County prosecuting attorney Bob McCulloch; Governor Jay Nixon of Missouri; Ferguson police chief Thomas Jackson; Ferguson mayor James Knowles and St Louis County police chief Jon Belmar.
  • (18) Occupational exposure to respiratory hazards throughout their career was retraced for each subject.
  • (19) – the Death of Terry Lloyd, to be broadcast on 21 March, follows the journalist's daughter Chelsey as she retraces his final movements in Iraq , looking for answers her family has been seeking for a decade.
  • (20) To do this, scientists have developed computer models to effectively play waves and winds backwards, allowing rescue workers to retrace the movements of debris to the site of a crash.

Retract


Definition:

  • (v. t.) To draw back; to draw up or shorten; as, the cat can retract its claws; to retract a muscle.
  • (v. t.) To withdraw; to recall; to disavow; to recant; to take back; as, to retract an accusation or an assertion.
  • (v. t.) To take back,, as a grant or favor previously bestowed; to revoke.
  • (v. i.) To draw back; to draw up; as, muscles retract after amputation.
  • (v. i.) To take back what has been said; to withdraw a concession or a declaration.
  • (n.) The pricking of a horse's foot in nailing on a shoe.

Example Sentences:

  • (1) Brain damage may be followed by a number of dynamic events including reactive synaptogenesis, rerouting of axons to unusual locations and altered axon retraction processes.
  • (2) Tottenham Hotspur’s £400m redevelopment of White Hart Lane could include a retractable grass pitch as the club explores the possibility of hosting a new NFL franchise.
  • (3) Any MP who claims this is not statutory regulation is a liar, and should be forced to retract and apologise, or face a million pound fine.
  • (4) During the first 15 to 20 min of metamorphosis the larval arms are retracted and resorbed into the aboral surface of the juvenile.
  • (5) • Written, oral and video statements of self-incrimination and self-renunciation by the detainees, apparently induced by the authorities, have been released through official media channels (for example, lawyer Zhang Kai was induced to make such a statement, which he later retracted).
  • (6) Duane's retraction syndrome is a congenital eye movement disorder characterized by a deficiency of abduction, mild limitation of adduction, with retraction and narrowing of the palpebral fissure on attempted adduction.
  • (7) Axonal trees display differential growth during development or regeneration; that is, some branches stop growing and often retract while other branches continue to grow and form stable synaptic connections.
  • (8) She said she was not worried by Rubio’s one-time position on his immigration bill, later retracted, that he could not support reform if it included citizenship for gay couples.
  • (9) Useful differential morphological criteria can be: star-like or transverse ring-shaped profile of isolated ulcerations, tubular ileocolic junction with retracted cecum and open valve, and uniformity of lesion in the comprehensive picture of the clinical case.
  • (10) Both require more brain retraction and have greater risk to the facial nerve than the translabyrinthine approach.
  • (11) Unlike posterior tympanoplasty, this technique makes it possible to meticulously remove the osteitic bone invariably found in the facial recess when there is infection of the retraction pocket.
  • (12) In the third patient laparotomy was applied owing to the bleeding from the retracted, cut uterine artery.
  • (13) Because of laboratory and clinical observation that recurrent nerve paralysis retracts the involved vocal cord from the midline, it was proposed that deliberate section of the recurrent nerve would improve the vocal quality of patients with spastic dysphonia.
  • (14) Seven to 30 days following axotomy the volume of the hypoglossal nucleus was significantly diminished, undoubtedly reflecting dendritic retraction (P less than 0.05).
  • (15) Contacts resulting in collapse and retraction were often accompanied by a rapid and transient burst of lamellipodial activity along the neurite 30-50 microns proximal to the retracting growth cone.
  • (16) At three, six, and twelve months after the first operation the development of retraction pockets was also studied.
  • (17) The anchoring wire can also be retracted and repositioned.
  • (18) The right occipital lobe is retracted laterally from the falx cerebri.
  • (19) These experiments demonstrated that accessory abducens is a primary controller of eye retraction through its axons to retractor bulbi.
  • (20) A commercial system for producing retracted compensators has been adapted to suit local needs, and is evaluated here.

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