(n.) A solid, all plane sections of which are ellipses or circles. See Conoid, n., 2 (a).
(a.) Alt. of Ellipsoidal
Example Sentences:
(1) The lesion (10.6 X 9.8 mm) was a well-defined ellipsoid granuloma due to a foreign body with a central zone of necrosis surrounded entirely by a fibrous wall.
(2) The algorithm is an improvement over the sphere model in that it considers two distinct surfaces: an ellipsoid, to model the region of the skull on which the sensors are placed, and a sphere as the medium in which the current dipole model is considered.
(3) Oocysts appeared under bright field microscopy as 3x4 mcm ellipsoidal bodies with a central large round granule, known as the residuum, and 1-4 granules.
(4) 1965.-Thin sections of filterable hemolytic anemia agent of rat, now identified as Haemobartonella muris, revealed (i) that the agent is spherical or ellipsoidal and 350 to 700 mmu in size, (ii) that it has a single limiting membrane enclosing granules and some filaments (neither cell wall nor nucleoid was found), and (iii) that it is found preferentially at the surface and sometimes within the cytoplasmic vacuoles of erythrocytes in the circulating blood and bone marrow, and multiplies there through binary fission.
(5) The ReLPS suspension showed large ellipsoidal particles 12-38 nm wide and 40-100 nm long.
(6) Light microscopic studies indicate it has an ellipsoidal centre from which catalase-positive filamentous or rod-like processes protrude along its major axis; hence, it is called a phi body.
(7) E2 was obtained as follows: The stress-time integral was analyzed from pressure-volume data and wall thickness using an ellipsoidal calculation model.
(8) The thermographs showed a pattern of ellipsoidal isotherms (major axis horizontal) approximately concentric about a temperature apex (coldest point) which was slightly inferior to the geometric center of the cornea (GCC).
(9) These data are consistent with an ellipsoidal rather than a spherical shape.
(10) There is saturation of the interaction sites by the aggregation of a few protein monomer units possibly to form a tetramer which is moderately asymmetric (1:4 axial ratio, assuming an ellipsoid of revolution) and relatively rigid.
(11) The uterine volume was measured in 30 patients 24 hours before hysterectomy by ultrasonography using the prolate ellipsoid formula.
(12) The lunar particles found in the sample include: (i) spherules, rotational ellipsoids, dumbbells, tear-drops, rings, and crescents which have (ii) diameters of 0.1 to 500 microns; (iii) budlike features on the particles; and (iv) chemical inhomogeneity (electron probe).
(13) Oocytes of I. serini are spheroid and average 19.2 times 20.1 mum, while those of I. canaria are larger, more ellipsoid, and average 21.8 times 24.6 mum.
(14) Also, in bursectomized birds, the ellipsoid could not be identified, although a small number of abnormal ellipsoid-associated cells (EAC) were observed in the periellipsoid region.
(15) Native human Glu-plasminogen (Glu1-Asn791) was previously shown to have a radius of gyration of 39 A and a shape best described by a prolate ellipsoid [Mangel, W. F., Lin, B., & Ramakrishnan, V. (1990) Science 248, 69-73].
(16) From the relaxation times and the orientation mechanisms, the nucleosome may be assimilated to an oblate ellipsoid of dimensions about 140 x 140 x 70 A, and the DNA superhelical axis is parallel to its shorter axis.
(17) Uterine volume, based on the ultrasound data, was calculated, utilizing the formula for a prolate ellipsoid, before and after treatment.
(18) The chamber, an ellipsoid of revolution, is gold-plated for increased reflectivity.
(19) The protective aspect of melanin in dark skin is seen as resulting from its high concentration and its confinement to ellipsoidal and densely packed organelles that can effectively shield the nucleus.
(20) Second, although the parallelogram model provides a slightly better fit of our data than the other two shapes, it does not serve as a better guide than the ellipsoidal model for interpolating from the measurements to thresholds in novel color directions.
Reniform
Definition:
(a.) Having the form or shape of a kidney; as, a reniform mineral; a reniform leaf.
Example Sentences:
(1) Except for its conidia, which are mostly reniform to allantoid rather than ovoid as is characteristic for W. dermatitidis, and the undecided mode of conidiogenesis, the isolate closely resembles W. dermatitidis in gross and microscopic morphology, thermotolerance, and general and neurotrophic infectivity patterns in mice injected intraperitoneally.
(2) pneumocysts with reniform bodies and degradation inclusions within macrophages, Pneumocystis carinii pneumonitis (PCP) could be detected in 100% of cases.
(3) The pneumocysts presented as circular structures of 5 microns in diameter and of brilliant green-yellow fluorescence surrounding two mirror image reniform structures.
(4) This round to oval to slightly reniform structure was bound by a single limiting membrane and composed of an electron dense, slightly granular matrix without evidence of crystalloid formation.
(5) The 6 carcinoids with an insular pattern primary in the ovary or metastatic to it from the ileum displayed granules that were pleomorphic (dumbbell and reniform shaped) and varied from 90 to 410 mum, with an average diameter of 210 mum.
(6) The kidney thus keeps its reniform shape but does increase in size (bean or orange to grapefruit pattern).
(7) Instead of normal reniform shape, the kidneys appeared "inverted pyriform" or "inverted triangular".
(8) The histologic type of surgically resected specimens was a diffuse proliferation of atypical lymphoid cells with monocytoid appearance, i.e., abundant pale cytoplasm with distinct cell border and small reniform nucleus.
(9) The reniform shape was usually preserved and was present in 19 of 20 cases with CT and 13 of 15 cases with sonograms.
(10) At 3 and 4 h small cells with a reniform nucleus accumulate in the connective tissue core of the choroid plexus.
(11) Resected small-bowel specimens from patients with the reniform configuration revealed focal ischemic changes.
(12) These ultrastructural features combined with the frequent reniform nuclei and scattered lysosomes suggested histiocyte differentiation.
(13) Hydrodynamic comparisons were made between conventional valves (CV) and equivalent sized reniform valves (ERV) that would adapt to the same anulus.
(14) These killer cells included large cells with azurophilic granules in the cytoplasm and with a reniform nucleus, thus resembling large granular lymphocytes.
(15) The leukemic cell count increased rapidly; the cells became large and the nuclear outline, which had been reniform, became lobulated.
(16) This article describes a mitral bioprosthetic valve consisting of three bovine pericardial leaflets with a "reniform" base.
(17) This cell is a large lymphoid cell with strong alpha-naphthyl esterase activity concentrated in a limited area in the cytoplasm usually at the indentation site of a slightly reniform nucleus.
(18) By means of multilayered plastic reconstruction using serial semithin epoxide sections, it has been demonstrated that besides typical follicles there are some other ones in the thyroid gland of newborns: follicles that have a local thickening on one side, follicles that have reniform proliferates with a cavity, and also follicles with two cavities.
(19) Cytomorphologic features of EG were seen in all cases including Langerhans' cell histiocytes having oval to reniform shape nuclei with nuclear grooving and abundant pale cytoplasm.
(20) Ultrastructurally, the cells showed sparse organelles except for prominent paranuclear Golgi apparatus, frequent reniform nuclear indentations, and ruffled cytoplasmic membranes.