What's the difference between annular and circular?

Annular


Definition:

  • (a.) Pertaining to, or having the form of, a ring; forming a ring; ringed; ring-shaped; as, annular fibers.
  • (a.) Banded or marked with circles.

Example Sentences:

  • (1) Linear and annular gap junctions between neighbouring cells were present, particularly in Group 1.
  • (2) Sterile, pruritic papules and papulopustules that formed annular rings developed on the back of a 58-year-old woman.
  • (3) The dual-probe system incorporates a central collimated probe for monitoring activity in the LV surrounded by an annular detector collimated in such a manner as to provide simultaneous real-time monitoring of the LV background activity.
  • (4) The skin lesions resembled disseminated subacute lupus erythematosus on clinical examination, but actinic granuloma or annular elastolytic giant cell granuloma was seen in biopsy specimens of the lesions.
  • (5) Little anatomic information is available on the annular myocardium.
  • (6) Immunohistochemical studies support earlier reports of a rich nerve supply to the posterior longitudinal ligament, a less developed innervation of the anterior ligament and the outermost annular ring, and a total lack of innervation in deeper parts of the intervertebral disc.
  • (7) The case of a Black African patient with an annular subvalvular left ventricular aneurysm of unknown origin is described, and the pathological findings in this condition together with a review of the literature is presented.
  • (8) The lesions were annular or serpiginous and their surface was livid-red to pale-red.
  • (9) Although commonly subacute in presentation, complications of endocarditis were frequent: arterial emboli in five patients, new electrocardiographic conduction system abnormalities in nine, congestive heart failure in eight, annular or myocardial abscesses in five, and disruption of valve leaflets in three.
  • (10) Thirteen patients with localized granuloma annulare and 19 with the generalized form of the disease were typed for HLA antigens.
  • (11) There was a continuous relation between the incidence of stroke and the severity of mitral annular calcification; each millimeter of thickening as shown on the echocardiogram represented a relative risk of stroke of 1.24 (95 percent confidence interval, 1.12 to 1.37; P less than 0.001).
  • (12) Previous studies have shown that systolic annular nonplanarity can cause apparent prolapse in the four chamber view without actual leaflet displacement above the most superior points of the anulus, and there is evidence for such nonplanarity in vivo.
  • (13) The prevalence of aortic and mitral regurgitation as well as valvular and annular calcification did not differ between analyzed groups.
  • (14) Histologically, elastic tissue is destroyed by the granulomatous process in actinic granuloma, but not in granuloma annulare.
  • (15) The data on DPH anisotropy, pyrene excimerization and induction resonance energy transfer (IRET) from PM proteins to pyrene provided the evidence for age-dependent decrease in PM lipid phase fluidity inclusive of that of annular lipid.
  • (16) Specimens of the seawater fish annular seabream (Diplodus annularis) were caught from a polluted harbor area and from a clean reference area.
  • (17) A total of 54 patients with tick-borne annular erythema (TAE) were investigated.
  • (18) Mitral valve replacement and reconstruction of the interatrial septum were necessary because the tumor originated from the left atrial side of the interatrial septum and invaded the anterior mitral valve leaflet and around the annular area.
  • (19) (1) Annular stimulation of rods slightly facilitated rod-mediated flicker sensitivity to frequencies less than 10 Hz.
  • (20) After quench freezing, 1-2 mum thick sections of mouse liver were cut at 193 degrees K and picked up on a specially designed annular specimen holder covered with an aluminium coated nylon film.

Circular


Definition:

  • (a.) In the form of, or bounded by, a circle; round.
  • (a.) repeating itself; ending in itself; reverting to the point of beginning; hence, illogical; inconclusive; as, circular reasoning.
  • (a.) Adhering to a fixed circle of legends; cyclic; hence, mean; inferior. See Cyclic poets, under Cyclic.
  • (a.) Addressed to a circle, or to a number of persons having a common interest; circulated, or intended for circulation; as, a circular letter.
  • (a.) Perfect; complete.
  • (a.) A circular letter, or paper, usually printed, copies of which are addressed or given to various persons; as, a business circular.
  • (a.) A sleeveless cloak, cut in circular form.

Example Sentences:

  • (1) By hybridization studies, three plasmids in two forms (open circular and supercoiled) were detected in the strain A24.
  • (2) When irradiated circular DNA, previously nicked by T4 endonuclease V, is briefly exposed to elevated temperature, the DAN becomes susceptible to the action of exonuclease V, and pyrimidine dimers are selectively released.
  • (3) Circular muscle strips from the opossum esophageal body obtained 3-5 cm above the esophagogastric junction were suspended in organ baths for measurement of isometric tension.
  • (4) Noradrenaline decreased the phasic contraction amplitude of the circular muscle and exerted a stimulant effect on the tone which suggested an existence of two alpha 1-adrenoceptor subtypes.
  • (5) After methylene blue, the gradient in resting potential across the circular layer was greatly reduced or abolished.
  • (6) Circular dichroism (CD) spectra indicating different local orientation of oxazolone, when coupled to L or D side chain-terminating amino acids, support this suggestion.
  • (7) The alpha-helical content of the free form of the lipoprotein was measured from the circular dichroism spectrum of the lipoprotein in 0.01% sodium dodecyl sulfate and found to be 87%.
  • (8) Parameters affecting assembly of these complexes were sequences in circular DNA templates, sizes and sequences of linear DNA templates, temperature and incubation time.
  • (9) The mechanisms underlying the biphasic response (BR) of the circular muscle of the guinea pig ileum (CMGPI) to bradykinin (BK) have been examined.
  • (10) The distribution and lateral mobility of VDCCs on CA1 hippocampal neurons have been determined with biologically active fluorescent and biotinylated derivatives of the selective probe omega-conotoxin in conjunction with circular dityndallism, digital fluorescence imaging, and photobleach recovery microscopy.
  • (11) The structure of the Z-helix antigen was confirmed by circular dichroism (CD) and U.V.
  • (12) Dustin Benton Dustin Benton, head of resource stewardship, Green Alliance Creating a circular economy will take action in three areas: the economy, policy and politics, and innovation.
  • (13) Anastomotic devascularization has been incriminated in the development of post-operative complications (fistula, stenosis) of circular stapling.
  • (14) If people approach it in the right way and we show that this is a development agenda – it’s competitiveness, it’s jobs – then why wouldn’t it be adopted.” Read more like this: How much do you know about the circular economy?
  • (15) When the method proposed by Trela (1975) is applied, thin layers of the petrous crest are chiselled out until the common crus of the superior and posterior semi-circular becomes apparent.
  • (16) A comparison of the conformation of Folch-Pi apoprotein in organic solvent and in aqueous solutions has been made by ESR, infrared and circular dichroism spectroscopy studies.
  • (17) In the group of malignant schizophrenia, irrespective of the stage of the disease and in the group of circular forms there was a definite drop in the activity of cytochromoxidase, succinatedehydrogenase and MAO, while as the activity of the ATP-ase and peroxidase was increased.
  • (18) Circular cuts which surgically isolated the medial basal hypothalamus (MBH) from the remainder of the brain did not prevent copulation 4 to 24 h later, but did block reflex ovulation.
  • (19) Monodispersed N- and C-protected linear homo-oligomethionines (n = 2- -7) are studied by measurements of circular dichroism in the vacuum ultraviolet region.
  • (20) The first stage is characterized by circular disturbances of conditioned activity, vegetative shifts of compensatory character and intensification of individual characteristics of behaviour.