(n.) A solid of the form described by the revolution of a right-angled triangle about one of the sides adjacent to the right angle; -- called also a right cone. More generally, any solid having a vertical point and bounded by a surface which is described by a straight line always passing through that vertical point; a solid having a circle for its base and tapering to a point or vertex.
(n.) Anything shaped more or less like a mathematical cone; as, a volcanic cone, a collection of scoriae around the crater of a volcano, usually heaped up in a conical form.
(n.) The fruit or strobile of the Coniferae, as of the pine, fir, cedar, and cypress. It is composed of woody scales, each one of which has one or two seeds at its base.
(n.) A shell of the genus Conus, having a conical form.
(v. t.) To render cone-shaped; to bevel like the circular segment of a cone; as, to cone the tires of car wheels.
Example Sentences:
(1) Implantation of the mouse embryo involves the invasion of the secondary trophoblast giant cells of the ectoplacental cone (EPC) into the uterine decidua.
(2) It is commonly assumed that the visual resolution limit must be equal to or less than the Nyquist frequency of the cone mosaic.
(3) In scanning of more than 20 Hz frequency, the spectral pattern also reflected the characteristics of the cone system.
(4) The function of these triple cones can not be deduced from the behavior patterns of these fishes.
(5) Light-induced cone shortening provides a useful model for stuying nonmuscle contraction because it is linear, slow, and repetitive.
(6) As early as E-28 many growth cones have lamellipodia that extend outward from the core region as far as 10 microns.
(7) RCA-1, which is specific for D-galactose, showed patchy fluorescence on the basal and distal portions of the outer segments of the cones and rods, whereas neuraminidase-treated sections had uniform fluorescence throughout the tissues.
(8) Rats permitted to recover for 13 weeks and then sacrificed had lost almost all their rods (p less than 0.001) while the cones were reduced by about 50% (p less than 0.01).
(9) Rod adaptation had no reliable influence on response to rapid onset in cones or bipolar cells.
(10) Unique domains of the retinal interphotoreceptor matrix (IPM), termed cone matrix sheaths, are composed largely of chondroitin 6-sulfate proteoglycan in most higher mammalian species.
(11) Psychophysical results on human colour matching (Stiles & Burch, 1955; Stiles & Burch, 1959) were well predicted from the spectral sensitivities of the monkey cones.
(12) Our model of voltage dependence of GABA uptake predicts that all colors of light should hyperpolarize H1 cone horizontal cells and other investigators have shown by intracellular recording and dye-marking that type H1 cone horizontal cells hyperpolarize to all wavelengths of light.
(13) During the third stage, the dendritic trees of ganglion cells no longer branch or extend by means of active growth cones.
(14) Growth cones from the neurons contacted the muscle fibers within 6-12 h after isolation.
(15) The results indicate that contact Nd.YAG laser conization for CIN is an excellent conservative therapy from the point of cure rate, safety, indication, operation time and cone specimen, even compared with CO2 laser conization.
(16) In the human retina, which has both cones and rods in abundance, cones, cone bipolars, ganglion cells, horizontal cells, and small and large amacrine cells were labeled.
(17) Neither pH nor composition of liner collection cone had an effect on postthaw acrosomal scores, but the time required for a 50% increase in severely damaged acrosomes was greater for spermatozoa collected in polyethylene than in rubber liner collection cones.
(18) These regenerating nerve fibres together with growth cones make terminals in the form of buttons, rings and loops.
(19) Underneath the envelope, p17 forms the matrix protein layer, while the capsid of the double cone shaped core is built up of p24.
(20) On the model of electrical coupling proposed by Lamb & Simon (1976), this suggests that to the extent that the voltage-dependent desensitization results from an increased conductance and hence an increased shunt of the signals at the plasma membrane, there must be a concomitant increase in the conductance of the electrical pathways linking cones to one another.
Ellipse
Definition:
(n.) An oval or oblong figure, bounded by a regular curve, which corresponds to an oblique projection of a circle, or an oblique section of a cone through its opposite sides. The greatest diameter of the ellipse is the major axis, and the least diameter is the minor axis. See Conic section, under Conic, and cf. Focus.
(n.) Omission. See Ellipsis.
(n.) The elliptical orbit of a planet.
Example Sentences:
(1) The authors have presented in two previous articles the graphic solutions resembling Tscherning ellipses, for spherical as well as for aspherical ophthalmic lenses free of astigmatism or power error.
(2) The Ta loop was a smooth, elongated ellipse in configuration and showed clockwise rotation in all planes, as did the P loop.
(3) Eighty degrees further forward, along the minor axis, was the crank arm orientation for the second ellipse, Eng90.
(4) A calculation for the correct circumference of an ellipse is proposed using the simple formula for a circle times a correction factor.
(5) Results show that the 3-D disc is mostly preceded by impressions of elastic amoeba-like deformations, whereas the 3-D egg is mostly preceded by the percept of a rotating flat ellipse.
(6) The lumina of most nonrespiratory bronchioles from normal lungs conformed closely to their respective ellipses, thus corroborating previous observations that they are normally cylindroid.
(7) Using a carbon dioxide laser, an ellipse of conjunctival-tarsal-inferior muscle tissue was excised from the inner surface of the ectropic lid inferior to the punctum.
(8) The lateral margins and base of transverse sections through the ellipse were free of tumor.
(9) Three commonly used prostate volume measurement techniques were analyzed: planimetry, prolate ellipse volume calculation (HWL), and an ellipsoid volume measurement technique.
(10) In this article four additional ideas are reviewed to improve the final cosmetic result of the ellipse.
(11) The shapes of the ellipses obtained characterized the rheological properties of each bronchial mucus sample before and after treatment.
(12) The long-term surgical outcome as determined by sexual function indicated that the penile prosthesis group remained the most sexually active, followed by the Nesbit ellipse group with the tunica vaginalis graft group being the least sexually active.
(13) With a set of discrete basic elements (cell nuclei) having several measurable features (area, surface, main and minor axis of best-fitting ellipses) a graph is defined as having attributes associated with edges.
(14) In all cases significant variations of the posturographic parameters regarding in a particular way the total tracing length, the ellipse surface and the mean speed have been recorded.
(15) The corneo-limbal ring (CLR) is defined here as the best fitting ellipse within the limbal region and characterized by the horizontal diameter (Dh), the vertical diameter (Dv), the eccentricity (e), and the circumference (O).
(16) These solutions, as expected, resemble the Tscherning ellipses, but strongly deformed.
(17) Two-year-old children received intradimensional discrimination training at initially distant points on a circle-ellipse continuum.
(18) Genioglossal muscle shortening increases pharyngeal area and reduces pharyngeal resistance more effectively when the pharynx is elliptical, with the long axis of the ellipse oriented laterally.
(19) The area of the stenosis by the edge detection method was calculated by analyzing two orthogonal projections for irregular stenoses and with use of the formula for the area of an ellipse (ellipse method).
(20) In children aged 3 years the shape of the upper dental arch was in most cases similar to a semi-ellipse and that of the lower arch approached parabole.