What's the difference between rarefy and rarely?

Rarefy


Definition:

  • (v. t.) To make rare, thin, porous, or less dense; to expand or enlarge without adding any new portion of matter to; -- opposed to condense.
  • (v. i.) To become less dense; to become thin and porous.

Example Sentences:

  • (1) The 6410t cells were shown to bind specifically this factor and react to it by proliferation in the conditions of rarefied inoculation.
  • (2) An initial reaction of mononuclear cells, activated fibroblasts, and some giant cells of foreign body type in the surrounding connective tissue is followed by the development of a fibrous capsule rarefied by cells around the implant in the time up to 3 months.
  • (3) As half an hour of vox-poppery proves, this is also a place where the supposedly rarefied issue of electoral reform may actually come up on the proverbial doorstep.
  • (4) Fluorescein angiography demonstrated slight hyperfluorescence through rarefied retinal pigment epithelium but no leakage occurred from perifoveal retinal capillaries.
  • (5) Bone-destructive inflammatory processes (rarefying osteitis) were the most frequently encountered lesions, occurring in both the maxilla and the mandible.
  • (6) Their genuine disregard for the clichés of being in a band means conversation is relaxed, while their rarefied wealth of music, film and TV geekery makes for good gags.
  • (7) Nerves injected with demyelinating serum contained oligodendrocytes with pyknotic nuclei and edematous, rarefied cytoplasm.
  • (8) "Due to uncertainties in predicting the rarefied atmosphere at these very high altitudes, the accuracy of re-entry prediction is of the order of 10% of the remaining lifetime, so even on the last orbit revolution (90 minutes), there is a nine-minute prediction uncertainty.
  • (9) He didn’t inhabit rarefied social circles or drive a Bentley.
  • (10) Electron-microscopic examination revealed capillary engorgement with erythrocytes that appeared adherent to each other and contained entrapped areas of rarefied material.
  • (11) As evidenced from experiments on rats, a combined application of apressin with obsidan and diprazine, and also of adenozine with nicotine-amidadenine-dinucleotide (NAD), as well as of adeozine with nicotine amide potentiates the protective effect of these substances in hypobaric hypoxia, increases the resistance of the animals to cerebral ischemia, brings down the excess lactate level and raises the redoz potential of the system lactic-acid-pyruvic acid in the brain of rats exposed to the effects of rarefied atmosphere.
  • (12) Fibrillar and flocculent deposits were seen in the widened and rarefied subendothelial space in a small artery and two glomeruli, one of which also contained electron-dense deposits.
  • (13) I don't mean literature is obscure or rarefied or precious – that's no test of a book – rather it is operating on a different level to our everyday exchanges of information and conversation.
  • (14) The authors found that the median portion of chiasma is a weak point of microcirculation, as demonstrated by rarefied and transverse capillaries.
  • (15) In 90 days of Hk reduction of the capillaries is recorded, rarefied pericapillary network prevails, twistedness of the capillaries is clearly manifested, their complex branching decreases.
  • (16) The white matter showed a rarefied texture with widely dispersed nerve fiber tracts, volume expansion, and occasional cyst formation.
  • (17) Histopathologic findings included rarefied white matter with pyknotic nuclei and eosinophilic cytoplasm.
  • (18) However, looking at the neat rows of symbols made me reflect on how rarefied this sort of data can seem when summarised for a national website.
  • (19) No compensatory rarefying of acid discharge from the stomach, that was observed in reference subjects if transport of contents was accelerated, was detectable in the patients with ulcerative colitis.
  • (20) Microscopic sections of the skin revealed a thickened dermis with shortened and rarefied elastic fibers.

Rarely


Definition:

  • (adv.) In a rare manner or degree; seldom; not often; as, things rarely seen.
  • (adv.) Finely; excellently; with rare skill. See 3d Rare, 2.

Example Sentences:

  • (1) Guillain Barré syndrome following herpes zoster is rare and only 25 cases have been reported to date.
  • (2) Hypothyroidism complicated by spontaneous hyperthyroidism is an interesting but rare occurrence in the spectrum of autoimmune thyroid disorders.
  • (3) Oculomotor paresis with cyclic spasms is a rare syndrome, usually noticeable at birth or developing during the first year of life.
  • (4) The frequency of rare fragile sites was studied among 240 children in special schools for subnormal intelligence (IQ 52-85).
  • (5) 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.
  • (6) Cor triatriatum (CT) is a rare congenital defect, surgically correctable, and sometimes difficult to diagnose by cardiac catheterization.
  • (7) During this period he developed autoimmune haemolytic anaemia, a rare complication of myelofibrosis.
  • (8) One rare case of blind-ending branch originating in the upper third of the ureter are described.
  • (9) This analysis demonstrated that more than 75% of cosmids containing a rare restriction site also contained a second rare restriction site, suggesting a high degree of CpG-rich restriction site clustering.
  • (10) These are rare tumours comparable to abdominal desmoid tumours.
  • (11) They can rarely be detected spontaneously but most often are provoked.
  • (12) A rare case of an extradural brucellosis granuloma in the thoracic region is presented.
  • (13) Massive osteoplastic bone tumor in hepatocellular carcinoma is very rare.
  • (14) Aneurysmal bone cyst is an uncommon benign lesion that rarely presents in the craniofacial region.
  • (15) Axons emerge from proximal dendrites within 50 microns of the soma, and more rarely from the soma, in a tapering initial segment, commonly interrupted by one or two large swellings.
  • (16) Useful studies on the relationship between these acute lesions and peptic ulceration are rare.
  • (17) calcium tung-state, rare-earths compounds, double halogenides.
  • (18) Spontaneous reports of suspected adverse reactions may be the only way of revealing very rare events but they present great difficulties of rational interpretation.
  • (19) Metastatic tumors of the small bowel from extra-abdominal sites are rare.
  • (20) Perinephric abscess is a rare condition; it may be acute, but can take a chronic and atypical course as a result of incomplete treatment with antibiotics.