What's the difference between infrequency and rarity?

Infrequency


Definition:

  • (n.) The state of rarely occuring; uncommonness; rareness; as, the infrquence of his visits.
  • (n.) The state of not being frequented; solitude; isolation; retirement; seclusion.

Example Sentences:

  • (1) Surgical repair of the rheumatologic should however, is performed rarely, and should be reserved for the infrequent cases that do not respond to medical therapy.
  • (2) Despite of the increasing diagnostic importance of the direct determination of the parathormone which is at first available only in special institutions in these cases methodical problems play a less important part than the still not infrequent appearing misunderstanding of the adequate basic disease.
  • (3) Significant side-effects occurred infrequently and only 2 children lost weight during the period of medication.
  • (4) At 7 days axonal swellings were infrequently observed and the main structural feature was a reduction in myelin thickness in affected nerve fibers.
  • (5) In view of its infrequent and vague presentation, care is required to avoid overlooking the diagnosis of abdominal tuberculosis, particularly in the immigrant population.
  • (6) Allelic complementation was not observed, despite testing of a large number of allele pairs, and alleles suppressible by the ochre suppressor SUP11 were absent from a sample of 48 spontaneous mutants and occurred infrequently (7%) among a sample of ultraviolet-induced mutants.
  • (7) Social isolation, characterized by extremely infrequent contacts with other people, affects approximately one out of ten elderly people.
  • (8) This device is a possible improvement in the treatment of infants needing long term venous access, although doctors should be aware of the infrequent complications.
  • (9) This has been infrequently reported to occur during general anesthesia and to cause respiratory embarrassment, representing a significant hazard.
  • (10) Although runaway is infrequent with current generation pacemakers, it should be considered in addition to the more common causes of pacemaker malfunction in the patient with appropriate symptoms.
  • (11) Unequivocal interstitial deposits were infrequent and IgM was present in blood vessels in one patient only.
  • (12) In contrast, control Y79 cells not exposed to medium conditioned by RPE cells exhibit only infrequent neuronal phenotypes.
  • (13) In a series of over 200 patients, raised values were found frequently in hepatobiliary disease and infrequently in bone disease.
  • (14) Further, from the plateau values of the ratios, it follows that the substrates dissociate very infrequently from the ternary complex and that at a low substrate concentration 72% of the reaction follows the pathway in which ATP adds first to the enzyme.
  • (15) We conclude that this neuropathy, which is quite different from the infrequent peripheral nerve syndromes previously described in this illness, is commonly present in late Lyme disease.
  • (16) Biopsy of lymph nodes or brain and serologic tests needed for definitive diagnosis were done infrequently.
  • (17) Hematological side effects of neuroleptic drugs occur infrequently but remain a potential cause of serious toxicity.
  • (18) Four peaks (I, II, III, V) were present in all recordings, and a fifth (IV) was present infrequently.
  • (19) The gonadotrophin response to oestrogen levels was temporarily or permanently disordered in all but 3 patients in this series, whereas an ovarian refractoriness to gonadotrophins was only infrequently observed.
  • (20) Interhemispheric subdural hematoma (ISDH), although not infrequent in children, has been rarely encountered in adults.

Rarity


Definition:

  • (n.) The quality or state of being rare; rareness; thinness; as, the rarity (contrasted with the density) of gases.
  • (n.) That which is rare; an uncommon thing; a thing valued for its scarcity.

Example Sentences:

  • (1) We conclude that, despite its rarity, adenocarcinomas must be included in the differential diagnosis of solid renal masses in early life.
  • (2) Diagnostic difficulties were encountered due to the rarity of such infections and elusive identification of the organism with routine laboratory procedures.
  • (3) It’s now worth £4.7bn – leaving Zonneveld as a City rarity who might actually know what he’s talking about.
  • (4) This case of pulmonary alveolar microlithiasis emphasizes the rarity of the disease and its exceptional diagnosis in infants which relies on the pulmonary pathologic study.
  • (5) Reviewing the literature showed the rarity of the germinoma at the brainstem location.
  • (6) Longevity analysis demonstrated elongation of life expectancy for kindred members, and there was an apparent rarity of premature cardiac events.
  • (7) The rarity of hepatic failure following treatment for Wilms' tumor raises the possibility of an increased susceptibility to toxic injury in the presence of AAT accumulation.
  • (8) We consider that the rarity of stricture rules out the necessity of any change in management, whether or not erosive oesophagitis is observed at endoscopy.
  • (9) Due to the rarity of this tumor, little information exists in the literature as to its natural history, efficacy of therapy and its pathological and radiological appearance.
  • (10) They know too that the charter has the backing of every party in parliament – a constitutional rarity.
  • (11) Unusual findings included the rarity of rose spots, patients with fever as their only symptom, two patients with transient papilledema, and two others with peripheral blood smears suggestive of acute leukemia.
  • (12) Primary malignant lymphoma located in the duodenum is a rarity.
  • (13) In referring to a personal observation the authors recall the rarity of malignant degeneration of lesions of the spine caused by Paget's disease.
  • (14) The rarity of this type of hernia, without a herniary sac and accompanied by the late appearance of respiratory symptomatology, is stressed.
  • (15) None had petit mal, confirming its rarity in the elderly.
  • (16) Factors that contribute to the continuing high mortality rate of rectal perforation are its rarity, the highly infectious character of faecal contamination of the abdominal cavity or perirectal tissue, and the fact that examination often reveals little or no external trauma.
  • (17) Low frequencies were observed in both sexes for cancers of the gastro-intestinal tract and of the respiratory organs; previous reports of the rarity of gastric cancer were confirmed.
  • (18) In this case report the rarity of the causing agent, Candida parapsilosis, and its endothrix growth is accentuated.
  • (19) Bob McCulloch, the St Louis County prosecutor who oversaw the state grand jury inquiry that looked into Brown’s death, insisted that discrimination by law enforcement was a rarity but said authorities must “weed it out”.
  • (20) After a review of the literature, the rarity of this association is stressed.