What's the difference between erratic and random?

Erratic


Definition:

  • (a.) Having no certain course; roving about without a fixed destination; wandering; moving; -- hence, applied to the planets as distinguished from the fixed stars.
  • (a.) Deviating from a wise of the common course in opinion or conduct; eccentric; strange; queer; as, erratic conduct.
  • (a.) Irregular; changeable.
  • (n.) One who deviates from common and accepted opinions; one who is eccentric or preserve in his intellectual character.
  • (n.) A rogue.
  • (n.) Any stone or material that has been borne away from its original site by natural agencies; esp., a large block or fragment of rock; a bowlder.

Example Sentences:

  • (1) This erratic course renders difficult assessment of the efficacy of methods of treatment.
  • (2) As trigger sensitivity was decreased within its usual range, a marked and progressive ventilator response delay occurred which was associated with erratic changes in functional residual capacity as well as dyspnea and tachypnea.
  • (3) Obstacles to successful treatment include an erratic schedule, mistrust of authority, and uncooperative or aggressive behavior.
  • (4) In the wake of a second fatal police shooting in the St Louis area after the death of Michael Brown , concerned citizens are asking why officers had to kill Kajieme Powell, a 25-year-old man who was holding a knife and “behaving erratically.” They want to know why officers don’t shoot someone like Powell in the leg or the arm, rather than aiming for vital organs, or why they don’t just use a less lethal weapon, like a Taser.
  • (5) We attribute the persistence of infection in our patient to erratic usage of antituberculous drugs.
  • (6) Coronary blood flow and coronary perfusion pressure were significantly correlated during the administration of lignocaine; bupivacaine had erratic effects on coronary blood flow and no correlation between coronary blood flow and coronary perfusion pressure was seen.
  • (7) Flynn’s subsequent penchant for inflammatory, erratic and even bigoted statements left few, particularly in security circles, willing to defend him.
  • (8) The president of the European parliament, Martin Schulz, reflecting the deep anger felt in Brussels at the erratic negotiating tactics adopted by Tsipras and Varoufakis, said Greek voters should blame Tsipras for bringing the country to its knees.
  • (9) Cells in optimal (5 x 10(-9) M) but uniform concentrations of N-formyl-methionyl-leucyl-phenylalanine (FMLP) polarized well and showed a 'persistent random walk' type of locomotion, whereas in supraoptimal concentrations (10(-7) M), the cells took erratic paths and polarized poorly, suggesting that monocytes cannot develop an anteroposterior polarity if hit by ligand molecules at many points on the cell surface simultaneously.
  • (10) It is perhaps not surprising that self-diagnosis and self-medication are common and follow-up attendance is erratic.
  • (11) As far back as 2008, the Wall Street Journal was running front-page pieces , beginning: "Major banks are contributing to the erratic behaviour of a crucial global lending benchmark".
  • (12) The fact that it failed is related to the atomised society left behind by 40 years of the most brutal and erratic of dictatorships.
  • (13) At lower levels the results were somewhat more erratic due to inaccuracies of the various methods at low concentrations.
  • (14) At any rate, the only sparse range of body expressions, the smallness and preference of night activity of these animals and the erratic occurrence of essential behaviour patterns make the investigations more difficult.
  • (15) It has been encouraged by Trump’s often erratic, unfocused behaviour , and the resulting opportunities and dangers arising from weakened American global leadership.
  • (16) Though absorption of ampicillin from capsules was often erratic, its bioavailability was similar in normal and cirrhotic subjects.
  • (17) Moreover, the emotional climate of adolescence, which requires affiliation with peer groups, and a distancing from authority figures such as doctors and parents, is often associated with a deterioration in drug and dietary compliance and with erratic clinic attendance.
  • (18) I learned that the hard way: when I was younger, I played the part of the erratic, irascible drunk in order to have something to write about.
  • (19) Once well-paid, stable work with decent terms and conditions is gradually being replaced by minimum-wage, erratic jobs.
  • (20) Psychiatric patients may also be at special risk for the development of digitoxicity because of erratic drug taking, electrolyte imbalance or increased autonomic tone.

Random


Definition:

  • (n.) Force; violence.
  • (n.) A roving motion; course without definite direction; want of direction, rule, or method; hazard; chance; -- commonly used in the phrase at random, that is, without a settled point of direction; at hazard.
  • (n.) Distance to which a missile is cast; range; reach; as, the random of a rifle ball.
  • (n.) The direction of a rake-vein.
  • (a.) Going at random or by chance; done or made at hazard, or without settled direction, aim, or purpose; hazarded without previous calculation; left to chance; haphazard; as, a random guess.

Example Sentences:

  • (1) Multiple stored energy levels were randomly tested and the percent successful defibrillation was plotted against the stored energy, and the raw data were fit by logistic regression.
  • (2) Twenty-seven patients were randomized to receive either 50 mg stanozolol or placebo intramuscularly 24 h before operation, followed by a 6 week course of either 5 mg stanozolol or placebo orally, twice daily.
  • (3) The effects of sessions, individual characteristics, group behavior, sedative medications, and pharmacological anticipation, on simple visual and auditory reaction time were evaluated with a randomized block design.
  • (4) We have addressed the effect of late intensification with autologous bone marrow transplantation on SCLC through a randomized clinical trial.
  • (5) However, survival was closely related to the severity of the illness at the time of randomization and was not altered by shunting.
  • (6) Statistically significant differences were found mainly in the randomized trial, where during the first and second years, respectively, adenoidectomy subjects had 47% and 37% less time with otitis media than control subjects and 28% and 35% fewer suppurative (acute) episodes than control subjects.
  • (7) In a random sample of 1,000 neonates from a Delhi Hospital the incidence of jaundice was 53% and of hyperbilirubinaemia (HB) 6%.
  • (8) Febrile reactions were not distributed randomly among the patients; those with respiratory tract infection experienced more febrile reactions during periods with infection than during periods without.
  • (9) Five days later, the animals were randomly assigned to one of four treatment groups: Group 1 received intracranial implantation of controlled-release polymers containing dexamethasone; Group 2 received intraperitoneal implantation of controlled-release polymers containing dexamethasone; Group 3 received serial intraperitoneal injections of dexamethasone; and Group 4 received sham treatment.
  • (10) In a randomized double-blind study, 40 patients with coronary heart disease received intravenously either 0.025 mg nitroglycerin or placebo.
  • (11) A prospective randomized trial was conducted at Srinagarind and Khon Kaen hospitals.
  • (12) Quantitative measurements of image contrast were carried out for B-mode images of anechoic spheres (cysts) embedded in a random scattering medium.
  • (13) The distribution of the amino acid pairs, i, i + 1 in alpha-helical configurations does not differ from the random pairing.
  • (14) The authors studied 84 randomly selected participants who live in retirement communities to discover factors leading to successful completion of a wellness enhancing program.
  • (15) In 290 patients with untreated carcinoma of the bladder the deoxyribonucleic acid properties, as measured by flow cytometry, of 3 random mucosal biopsies were studied and compared to those of the exophytic tumors.
  • (16) A prospective randomized trial involving 64 patients with bleeding peptic ulcers was performed to assess the efficacy of two modalities of injection therapy.
  • (17) The relationship between technique of obtaining Papanicolaou smears, presence of endocervical cells, and rate of cervical neoplasia was studied by comparing an endocervical and ectocervical nylon brush (Bayne brush), Ayre spatula plus endocervical brush, and spatula plus cotton-tipped swab in a randomized, prospective trial involving 11,061 patients.
  • (18) One hundred and sixteen patients with advanced and metastatic adenocarcinoma of the pancreas were randomized to treatment with combined Streptozotocin and 5-fluorouracil or combined Streptozotocin and cyclophosphamide.
  • (19) The government has blamed a clumsily worded press release for the furore, denying there would be random checks of the public.
  • (20) The haemodynamics and affecting factors of the acute random skin flap and the methods for monitoring its viability were studied.