(n.) The line that goes round or encompasses a circular figure; a periphery.
(n.) A circle; anything circular.
(n.) The external surface of a sphere, or of any orbicular body.
(v. t.) To include in a circular space; to bound.
Example Sentences:
(1) Direct fetal digitalization led to a reduction in umbilical artery resistance, a decline in the abdominal circumference from 20.3 to 17.8 cm, and resolution of the ascites within 72 h. Despite this dramatic response to therapy, fetal death occurred on day 5 of treatment.
(2) The patterns observed were: clusters of granules related to the cell membrane; positive staining localized to portions of the cell membrane, and, less commonly, the whole cell circumference.
(3) The oblique interface between corneal and scleral stroma determines the appearance of the surgical limbus whose landmarks vary around the circumference of the globe but predictably correlate with structures of the anterior chamber angle.
(4) Total body fat decreased from 55.8 to 41.4 kg and lean body mass and arm muscle circumference (AMC) remained unchanged.
(5) The variations of the elastic properties and the density around the circumference of both the immature osteopetrotic femur and the unaffected femur were found to be similar to those previously measured on normal adult bovine femora.
(6) Weight, arm circumference and muscle area-for-height were calculated.
(7) Arm muscle circumference was significantly reduced in males.
(8) Chest and biceps circumferences increased 4.2% and 3.1%, respectively; abdomen and thigh circumferences did not significantly change; body fat decreased 16.8%; and body mass increased 2.3%.
(9) Serial measurements of proximal interphalangeal joint circumference using a single joint that was selected as being 'worst' on clinical grounds or the largest joint at baseline were compared with the mean of all 10 joints in patients with active rheumatoid arthritis receiving second-line drugs.
(10) On admission she was found to be a well-nourished infant with a head circumference of 56 cm, bulging anterior fontanelle and mental retardation.
(11) Although changes in circumference are most often used, volumetric changes have been reported to be more sensitive and thus more effective.
(12) Closely associated with alcoholic hyalin and often found along its entire circumference, were bundles of fine filaments in parallel arrangement of much smaller size.
(13) Heights, weights and head circumferences were obtained from two groups of primary school children: 1016 children from throughout Oxfordshire, a rural county with few areas of deprivation, and 219 children from an economically deprived part of the city of Newcastle on Tyne.
(14) The affected family members had normal stature, normal occipitofrontal circumference, and no other medical problems.
(15) Measurements of cross-sectional muscle areas of the upper-arm and mid-thigh from MRI images were compared to corresponding estimates from anthropometric measurements of limb circumferences and skinfold thicknesses in 25 normal, healthy, elderly persons.
(16) In the second placebo controlled experiment 150 mg im testosterone enanthate administration was associated with enhanced rigidity of NPT but with no effect on frequency or circumference change of NPT and no effect on frequency of REM.
(17) Cannon bone circumference at weaning was increased (P less than .05) by growth implants.
(18) In order to assess the efficacy of therapy, manual measurement of the circumference of thigh and leg and echotomography were performed in order to measure the thickness of the muscle layer.
(19) A defect was created in the thoracic trachea in nine piglets (10 kg) by excising a segment from the entire thoracic trachea proximal to the right upper lobe bronchus (3 to 3.5 cm in length) and 30% of the circumference in width (1 to 1.5 cm).
(20) The results indicated significant negative correlations between maternal plasma zinc and albumin-bound zinc concentrations and plasma copper concentration in the third trimester of pregnancy and mid-arm circumference and ponderal index.
Tympanum
Definition:
(n.) The ear drum, or middle ear. Sometimes applied incorrectly to the tympanic membrane. See Ear.
(n.) A chamber in the anterior part of the syrinx of birds.
(n.) One of the naked, inflatable air sacs on the neck of the prairie chicken and other species of grouse.
(n.) The recessed face of a pediment within the frame made by the upper and lower cornices, being usually a triangular space or table.
(n.) The space within an arch, and above a lintel or a subordinate arch, spanning the opening below the arch.
(n.) A drum-shaped wheel with spirally curved partitions by which water is raised to the axis when the wheel revolves with the lower part of the circumference submerged, -- used for raising water, as for irrigation.
Example Sentences:
(1) To test ciliary clearance, the fluid was placed in either the tympanum or the mastoid bulla.
(2) These areas are the anterior epi-tympanum, the recess between the tympanic membrane and the anterior and inferior canal walls, the facial ridge and the sump that can form behind it, the sino-dural angle and the mastoid tip.
(3) This study has demonstrated the anatomical relations of the cochlea to structures in the medial wall of the tympanum, and has shown that surgical access can be obtained to the terminal auditory nerve fibres supplying the basal, middle and apical turns of the cochlea.
(4) From this preliminary investigation, the device successfully maintained atmospheric pressures in the tympanum, compensated for Eustachian tube malfunction, prevented otorrhea and recurrence of middle ear effusions.
(5) Temperature within the brain and the esophagus and at the tympanum were obtained in a 12-yr-old male in a series of experiments that began 8 days after surgery for implantation of a drainage catheter.
(6) This is invariably indicated on a pre-operative basis, except in two circumstances: --when the glomus, tumour is small and situated close to the drum of the tympanum, its surgical excision posing no problem of haemostasis under these circumstances: --when radiotherapy is envisaged as treatment of the glomus tumour when surgery is impossible.
(7) Although the clinical importance of these differences remains to be established, the authors believe they are substantial enough to justify continued use of tympanostomy tubes in the primary surgical therapy of chronic secretory otitis media, when medical therapy and observation indicate the need for drainage to improve hearing or correct anatomic deformities of the tympanum.
(8) The thick tympanum, while disadvantageous as an aerial receptor, likely enhances low-frequency bone conduction hearing.
(9) The inflammatory process, issuing from the external auditory passage and under circumvention of the tympanum, spreads to the skull base and according to the localisation causes adequate pareses of the brain nerves.
(10) Massive discharge occurred only with low viscosity fluid placed in the tympanum, whereas small amounts of highly viscous fluid were cleared by linear discharge.
(11) Otorrhea is the most common complication of surgical drainage of the tympanum for the treatment of chronic secretory otitis media.
(12) The authors report six cases of rare ear diseases: fibrous dysplasia of the tympanum mimicking an partially obstructive osteoma of the external auditory canal.
(13) The tube with a beveled head and split shank is very convenient and effective for the treatment since it is not only easily inserted but also easily removed, preventing it from migration into the tympanum.
(14) The existing peri-ligamentous space of the disco-malleolar ligament is a latent way between temporomandibular joint rear and tympanum.
(15) It has been assumed that the common inheritance of all early tetrapods was a light, rod-like stapes associated with a temporal notch in the otic region that was thought to have supported a tympanum, or eardrum.
(16) Seromucous effusions were found in the tympanum in 91% of 208 cases of cleft palate.
(17) The experimental evidence of cochleovestibular toxicity of aminoglycosides applied locally in the presence of a perforated tympanum leaves no room for doubt.
(18) Insertion of tympanostomy tubes to provide prolonged aeration and drainage of the tympanum in cases of chronic secretory otitis media has become the most commonly performed operation in children.
(19) In all animals, nontympanic surfaces were most responsive to low frequencies, and the tympanum was most responsive to high frequencies.
(20) The method seems to have the following merits: permanent ventilation of the tympanum with preservation of an intact drum (from the functional point of view); no tympanophonia or autophonia; simple technique, short operative period (five minutes); no risk of postoperative complications; and no danger of ascending infection of the middle ear from the ear canal.