(n.) The style or pin, which by its shadow, shows the hour of the day. It is usually set parallel to the earth's axis.
(n.) A style or column erected perpendicularly to the horizon, formerly used in astronomocal observations. Its principal use was to find the altitude of the sun by measuring the length of its shadow.
(n.) The space included between the boundary lines of two similar parallelograms, the one within the other, with an angle in common; as, the gnomon bcdefg of the parallelograms ac and af. The parallelogram bf is the complement of the parallelogram df.
(n.) The index of the hour circle of a globe.
Example Sentences:
Parallelogram
Definition:
(n.) A right-lined quadrilateral figure, whose opposite sides are parallel, and consequently equal; -- sometimes restricted in popular usage to a rectangle, or quadrilateral figure which is longer than it is broad, and with right angles.
Example Sentences:
(1) 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.
(2) A new calcium quantification technique that uses a parallelogram was developed to eliminate the problem of nodule superimposition over ribs.
(3) The parallelogram approach is based on the principle that estimates can be obtained on the amount of genetic damage that cannot always be assessed directly.
(4) Analysis of these responses provides weak but consistent evidence for the elicitation of depth in the Sander parallelogram, Mueller-Lyer, Zoellner, and Ehrenfels variant of the Ponzo illusion.
(5) When added to suspensions of membrane crystals of the channel, the polyanion caused disordering of the usual parallelogram array and increased occurrence of a contracted form of the array.
(6) Inspired by the parallelogram suspension utilized in the larger Huxley-style micromanipulator (A. F. Huxley.
(7) This can be illustrated by parallelograms of forces.
(8) Partially reassociated mixtures show dimers of the subunit that have a characteristic parallelogram shape when lying flat on the electron microscope grid, and a "boat" form in side view.
(9) Each group was classified in a parallelogram without overlapping, except for a part of the imidazole and thiol groups.
(10) Pigeons learned to peck a green key on which parallelogram-shapes were projected; they then received generalization tests in which the orientation of the parallelogram was varied.
(11) We evaluate how well three different parametric shapes, ellipsoids, rectangles, and parallelograms, serve as models of three-dimensional detection contours.
(12) Nondifferential training produced very little eventual stimulus control along the orientation dimension, but when training included S- trials (absence of the parallelogram) subjects responded consistently more to certain orientations than to others.
(13) Approximately, the dimer belongs to point group Ci with the centre of inversion at the centre of La2O2 parallelogram.
(14) This result was confirmed by varying element size and spacing, and by using oblique crosses rather than parallelograms as stimuli.
(15) The monomeric unit can be divided into a glycan chain piece, a connecting peptide, and a peptide chain piece, which define a solid parallelogram.
(16) A parallelogram approach can be used to estimate effects in non-accessible human tissues by using data from accessible human tissues and analogous tissues in animals.
(17) The zebrafish sperm plasma membrane, treated with freeze-fracture techniques, is seen to contain a multitude of intramembranous particles that, in a specific region of the posterior part of the sperm head, are organized into unusual particle arrays that appear as simple hexagons or parallelograms.
(18) Joystick-controlled rho-pixel arrays have been implemented with parallelogram-shaped rho-pixels incorporated as a simplified case of quadrilateral projection.
(19) Aside from conceptual difficulties with the task for both non-musicians and composers, choices for both groups provide support for the parallelogram model indicating a capacity in listeners to perceive abstract relations among the timbres of complex sounds without specific training in such a task.
(20) Such reports were made in the presence or absence of various types of visual, geometric surrounds (squares, triangles, crosses, or parallelograms).