What's the difference between covert and overt?

Covert


Definition:

  • (v. t.) Covered over; private; hid; secret; disguised.
  • (v. t.) Sheltered; not open or exposed; retired; protected; as, a covert nook.
  • (v. t.) Under cover, authority or protection; as, a feme covert, a married woman who is considered as being under the protection and control of her husband.
  • (a.) A place that covers and protects; a shelter; a defense.
  • (a.) One of the special feathers covering the bases of the quills of the wings and tail of a bird. See Illust. of Bird.

Example Sentences:

  • (1) Roshan was the latest victim in what is widely seen as a covert war against the Islamic republic's nuclear programme.
  • (2) Subsequent studies have demonstrated covert face recognition using behavioural tasks.
  • (3) His reports alleged active, sustained and covert collusion to subvert the election which, if confirmed, could constitute treason.
  • (4) The bill, intended to increase and update intelligence agency powers, would create a new framework for covert operations involving conduct that would otherwise breach criminal law.
  • (5) Somehow, despite all this, the Obama administration thinks it can “destroy” Isis, though, as the Post noted , the US government has not been able to destroy al-Qaida or any terrorist group in the last decade “through two wars, thousands of drone strikes and hundreds of covert operations around the world.” The only question now is how far this Forever War against Isis goes.
  • (6) Boko Haram spies spread the rumour that she refused to covert from Christianity to Islam.
  • (7) In general, the two studies show that qualitative characteristics of completely covert generations influence their impact on estimates of the frequency of external events.
  • (8) The drug subculture, the addict's family, and a methadone clinic all covertly elicit and reinforce this transformation maintained by the myth that the addict's is "out of control".
  • (9) A series of experiments were conducted on three severe prosopagnosic patients in an attempt to understand better this phenomenon known as covert face recognition, the conditions for its occurrence, and its functional locus.
  • (10) "Instead of actually fighting a conventional war, western powers and their allies appear to be relying on covert war tactics to try to delay and degrade Iran's nuclear advancement," Theodore Karasik, a security expert at the Dubai-based Institute for Near East and Gulf Military Analysis told Associated Press.
  • (11) The repurposing of the devices of unwitting users in foreign jurisdictions for covert attacks in the interests of one country’s national priorities is a dangerous precedent – contrary to international norms, and in violation of widespread domestic laws prohibiting the unauthorised use of computing and networked systems,” they conclude.
  • (12) Investigations mostly failed to show overt or covert face recognition, but NR performed at an above-chance level in selecting the familiar face on a task requiring a forced-choice between a familiar and an unfamiliar face.
  • (13) The covert self-evaluations were assumed to represent at internalization of early experiences of predominantly positive or negative social reinforcement from adult socializing agents.
  • (14) Richy Thompson, director of public affairs and policy at the British Humanist Association, welcomed the study, but said covert online access to abortion pills wasn’t enough.
  • (15) At the same time, by achieving a state of misery through following her mother's orders, she exposed her as ridiculous, and thus covertly discharged considerable aggression.
  • (16) Covert and overt depression was as frequent in the hysterectomized group as in the control group.
  • (17) The Information Commissioner's Office (ICO) said at Smith's tribunal that it believed some of the information held by the covert organisation and accessible to companies that subscribed to the service "could only have been supplied by the police or the security services".
  • (18) We now report that enhancement of calcium current in the peptidergic bag cell neurons of Aplysia by protein kinase C occurs through a different mechanism, the recruitment of a previously covert class of calcium channel.
  • (19) After all, the most basic freedom of all is the freedom to walk the streets unharmed and to sleep safe in our beds at night.” Parliament will soon debate the government’s first national security legislation bill to expand the powers of intelligence agencies and criminalise disclosure by any person of covert “special intelligence agencies”.
  • (20) It recommended that all radio communications taking place during undercover firearms operations should be recorded and covert armed response vehicles should be fitted with in-car data-recording systems.

Overt


Definition:

  • (a.) Open to view; public; apparent; manifest.
  • (a.) Not covert; open; public; manifest; as, an overt act of treason.

Example Sentences:

  • (1) None of the animals injected with either CD4+ or CD8+ T cells became overtly diabetic during the 30 days of observation whereas 8 of 23 mice inoculated with a mixture of the two subsets developed glycosuria and hyperglycemia.
  • (2) In contrast, albino rats and rabbits failed to succumb to overt disease by subcutaneous and intraperitoneal routes of inoculation.
  • (3) Overt hemorrhage, major or minor, was assessed clinically.
  • (4) The recorded APs were further subdivided into those exhibiting consistent antegrade conduction during sinus rhythm (overt APs: 50 left APs, eight right APs), those exhibiting intermittent antegrade conduction (intermittent APs: six left APs, two right APs), and those exhibiting only retrograde conduction (concealed APs: 33 left APs, two right APs).
  • (5) Of 55 new open reading frames analysed by gene disruption, three are essential genes; of 42 non-essential genes that were tested, 14 show some discernible effect on phenotype and the remaining 28 have no overt function.
  • (6) It is theoretically possible that in patients with overt CHF, drug treatment may not alter prognosis.
  • (7) This is suggested by the fact that patients with overt hyperparathyroidism are protected from developing aluminum-related bone disease even when they are given large parenteral loads of aluminum.
  • (8) Cable news channels like Fox News and CNN carried the address, and some of the networks carried it on their digital platforms, but a network insider told Politico on Thursday the speech’s content was too “overtly political” to broadcast.
  • (9) These do not concur with clinical experience but the figures for overt resistance, at 39% and 69%, correspond with expected non-responders to these regimes.
  • (10) It is important to appreciate that metabolic alterations are more severe in those patients with overt pulmonary insufficiency and that the metabolic response does not appear to be directly related to the severity of skeletal injury.
  • (11) Criteria for selective measurement of cholesterol concentration in cardiovascular screening programmes identify about three quarters of patients with the clinically overt condition.
  • (12) The present study demonstrated that delayed administration of a marine lipid diet, 25% menhaden oil (MO) by weight, until after the onset of overt renal disease, also resulted in significant improvement in rates of mortality, proteinuria, and histologic evidence of glomerular injury, compared with control animals fed a diet that contained mostly saturated fatty acids, 25% beef tallow.
  • (13) A more aggressive treatment with cytostatic drugs is suggested in the progressive form of the disease of younger patients and in patients with overt acute leukaemia.
  • (14) This study includes nine patients with a megakaryoblastic crisis in chronic myeloid leukemia (CML), four with acute megakaryoblastic leukemia (AM) and three with myeloid dysplasia later evolving into overt acute leukemia.
  • (15) In this study we measured plasma carnitine in a third group, alcoholic patients without overt liver disease.
  • (16) IDDM patients with incipient and overt nephropathy have been found to exhibit an overactivity of RBC sodium-lithium countertransport.
  • (17) To investigate atrial natriuretic factor (ANF) and its relationship to the renin system in diabetes, we measured plasma immunoreactive ANF and plasma renin activity (PRA) in 27 non-ketotic diabetic patients without evidence of cardiac or overt renal disease, and compared them with 26 age- and sex-matched normal subjects.
  • (18) Failure to isolate bacteria and the lack of overt inflammation during periods of remission suggested that the bacteria were not in the gland cistern but within gland tissue.
  • (19) TRH-TSH test enables to detect disorders of hypophyseal-thyroidal regulation characteristic for both overt and masked hyperthyroidism.
  • (20) Using two different assay systems to distinguish between overt and inner forms of carnitine palmitoyl transferase (CPT, EC 2.3.1.21) of intact guinea-pig liver mitochondria, we have shown that the hypoglycemic agent 2-(3-methylcinnamylhydrazono)-propionate (BM 42.304) inhibits the activity of carnitine-acylcarnitine translocase of liver mitochondria.