What's the difference between jerk and tweak?

Jerk


Definition:

  • (v. t.) To cut into long slices or strips and dry in the sun; as, jerk beef. See Charqui.
  • (v. t.) To beat; to strike.
  • (v. t.) To give a quick and suddenly arrested thrust, push, pull, or twist, to; to yerk; as, to jerk one with the elbow; to jerk a coat off.
  • (v. t.) To throw with a quick and suddenly arrested motion of the hand; as, to jerk a stone.
  • (v. i.) To make a sudden motion; to move with a start, or by starts.
  • (v. i.) To flout with contempt.
  • (n.) A short, sudden pull, thrust, push, twitch, jolt, shake, or similar motion.
  • (n.) A sudden start or spring.

Example Sentences:

  • (1) The EMG silent periods (SP) produced in the open-close-clench cycle and jaw-jerk reflex were compared for duration before and after treatment with an occlusal bite splint.
  • (2) While tonic pupil and reduced sweating can be attributed to the affection of postganglionic cholinergic parasympathetic and sympathetic fibres projecting to the iris and sweat glands, respectively, the pathogenesis of diminished or lost tendon jerks remains obscure.
  • (3) In reflex-induced jerks this negative transient could be recognized as a component of the sensory evoked potential.
  • (4) A dynamic optimization technique to minimize jerk cost under the constraint on jerk input was applied to interpret the results, assuming that a major goal of skilled movements was to produce optimally smooth movements.
  • (5) The Peppers like to be jerks (at Dingwalls Swan dedicated a song to “all you whiney Britishers who can suck my American cock”), but don’t let the surface attitude fool you.
  • (6) Results from animal experiments and neuropathological studies suggest that the abolition of jerks in such cases is probably due to loss of facilitating influences from the cerebral cortex and central grey nuclei.
  • (7) Surgery caused or aggravated unilaterally diminished knee or ankle jerks in 3% and 10% of cases, respectively.
  • (8) This is a gladiatorial display – that is what people go to see.” Bray added: “The popular knee-jerk reaction will be we should ban airshows, but it’s very rare for such a crash to take place.
  • (9) High-frequency trading may or may not distort markets, but surely a knee-jerk reaction by banning it is not the answer.
  • (10) In order to overcome various drawbacks of the conventional polygraphic study of a relationship between myoclonus and EEG, the EEG preceding and following the myoclonic jerk was simultaneously averaged by the CNV program.
  • (11) Compared with the myoclonic-serotonergic syndrome evoked by 5-hydroxytryptophan in rats with 5.7-dihydroxytryptamine lesions, harmaline+5-hydroxytryptophan-treated rats displayed more continuous and greater axial myoclonic jerks and some postural differences.
  • (12) The effects of electrical stimulation and microinjection of sodium glutamate (0.5 M) in the sympathetic pressor areas of the dorsal medulla (DM), ventrolateral medulla (VLM), and parvocellular nucleus (PVC) on the knee jerk, crossed extension, and evoked potential of the L5 ventral root produced by intermittent electrical stimulation were studied in 98 adult cats anesthetized with chloralose and urethane.
  • (13) The knee jerk itself is seen as a "physiological artefact," resulting from a mode of stimulation that does not occur in life, with the normal function of its underlying circuitry still under debate.
  • (14) The patients did not significantly differ from controls on catch-up saccade amplitude, square wave jerk rate, or anticipatory saccade rate.
  • (15) It was confirmed that the technique of jerk-locked averaging with a backward averaging program was useful for detecting cortical spikes in association with the spontaneously occurring myoclonus, which are not recognized on the convential polygraph, and for evaluating the temporal and topographical relationship between the spike and the myoclonus.
  • (16) The typical electrophysiological correlates of myoclonus in Alzheimer's disease are similar to those of cortical reflex myoclonus, with a focal, contralateral negativity in the EEG preceding the myoclonic jerk.
  • (17) The analgesic effect of morphine in the rat tail jerk assay was enhanced by the serotonin uptake inhibitor, fluoxetine.
  • (18) In focal epileptic status, the single dose stopped paroxysmal activity and the associated clonic jerks for a few seconds.
  • (19) The occurrence of horizontal jerks with larger amplitudes than on Earth was observed during vertical optokinetic nystagmus in astronauts tested throughout a 7-day spaceflight.
  • (20) Only one patient felt his knee to be unstable (he had a positive pivot jerk).

Tweak


Definition:

  • (v. t.) To pinch and pull with a sudden jerk and twist; to twitch; as, to tweak the nose.
  • (n.) A sharp pinch or jerk; a twist or twitch; as, a tweak of the nose.
  • (n.) Trouble; distress; tweag.
  • (n.) A prostitute.

Example Sentences:

  • (1) Bojan Krkic had been snuffed out in his central role for Stoke and Hughes’s tweaks would have paid off if Diouf’s finishing had been more incisive.
  • (2) Starting small, with oddly tweaked vocal samples and ominous-sounding piano, the first half is brilliantly brooding, to the point where the first chorus of “I love these streets but they weren’t meant for me to walk” arrives at the 45-second mark just as all the music drops away completely.
  • (3) That's likely to mean a tweak in set-up – most likely Vidal will play in more of an advanced role, with Silva adding extra ballast in behind him.
  • (4) Figures from the Halifax showing a 2.4% rise in prices in February could put pressure on the chancellor to announce tweaks to Help to Buy in next week's budget.
  • (5) And we will report back on how we are doing and we might have to tweak, but this is what we are aiming for."
  • (6) Once humans have gained "total mastery over morphological genetics", post-60,000 years from now, we'll be tweaking our children's DNA so that they're born with straight noses, regal lines and perfect facial symmetry.
  • (7) The Liverpool manager, Brendan Rodgers, secured Fabio Borini from Roma last week and is still hoping to tweak his squad before the new season, retaining interest in Fulham's Clint Dempsey and the Swansea City midfielder Joe Allen, and any money from Carroll's sale would bolster the funds at his disposal.
  • (8) "That essentially is just a group of people agreeing on tweaking things and making them a little bit different.
  • (9) The results are stunning and include precise measurements of the matter content of the universe and a tweak to the best estimate for its age.
  • (10) The Observer view on tax credit cuts | Observer editorial Read more “These are very significant changes and therefore I am sure the chancellor is keeping an open mind and will be looking to see whether any specific tweaks need to be made in the comprehensive spending review which takes place next month,” he said.
  • (11) It will need lots of tweaking to avoid annoying people – it's already being prodded to see whether it takes more or fewer clicks to reach the phone-dialer (more), and whether you can still set wallpaper (no, but your friends do with their picture – you may need to prune your friends).
  • (12) So let us tweak the question slightly and ask: what is the point of Jimmy Carr?
  • (13) The show's storylines were tweaked to take account of the new post-watershed slot.
  • (14) Osborne won limited support for "technical" tweaks to the draft legislation , although it appeared unlikely that Britain would make big gains in seeking to reverse the key points.
  • (15) The Department for Transport unveiled several tweaks to the first stage of the HS2 route to mollify opponents in the wealthy commuter belt north and west of London.
  • (16) To Geldof’s credit, he has said some of the lyrics will be tweaked slightly for this new version.
  • (17) She has been staying in the Y:Cube temporarily as a test to help the architects tweak the interior design.
  • (18) The engineers have put a brave face on the crash landings, tweaking navigation software, landing trajectories and other details based on each test.
  • (19) It may also offer tweaked devices to get around any injunction: "Samsung has already made some design changes to new products since the litigation first started more than a year ago," said Seo Won-seok, an analyst at Korea Investment & Securities.
  • (20) What they are prepared to do is tweak the existing doctrine," said Rebecca Johnson, the head of the Acronym Institute, a pro-disarmament pressure group.