Word Finder - symmetry

definition

Exact correspondence on either side of a dividing line, plane, center or axis.

definition

The satisfying arrangement of a balanced distribution of the elements of a whole.

There is symmetry about the initial line and a cusp at the origin.

Typically, these cabinets are combined with a wall mirror for symmetry.

But he is always ingenious, often witty, and nobody has carried farther than he the harmony of diction, sometimes marred by an affectation of symmetry and an excessive use of antithesis.

In the first place, there is necessarily a complete symmetry round the direction of the force.

Two end tables flanking a sofa will infuse a room with balance and symmetry.

The symmetry and shape of well-kept brows are instant beautifiers.

Instead, place end tables on the outside of each loveseat with a lamp to repeat your theme of symmetry.

Beyond the limits of his personal travels Herodotus applied the characteristically Greek theory of symmetry to complete, in the unknown, outlines The ides of lands and rivers analogous to those which had been of symexplored.

The Gastropoda are mainly characterized by a loss of symmetry, produced by torsion of the visceral sac. This torsion may be resolved into two successive movements.

His vanity made him order the surgeons to cut out a bone which protruded below the knee and spoilt the symmetry of his leg.

A factor of considerable importance in determining boiling-points of isomers is the symmetry of the molecule.

The plane of the optic axes may be either perpendicular or parallel to the plane of symmetry of the crystal, and according to its position two classes of mica are distinguished.

If we consider for the present only the primary plane of symmetry, the figure is reduced to two dimensions.

A remarkable feature of the solar system, which distinguishes it from all other known systems in the universe, is the symmetry of arrangement and motion of its greater bodies.

This want of symmetry may be brought about in various ways.

Symmetry was in fact the first geographical metry.

Progress continues in developing new techniques to match image curves over arbitrary viewpoints for extracting symmetry axes and recognition.

The Persian varieties are the finest as regards color, compactness, and symmetry of growth; but the Turban varieties are of hardier constitution and of freer growth, and therefore are better suited for beds, lines, and masses.

These hand-cut diamonds greatly varied in symmetry and appearance.

The beauty of Celtic knots lies in their symmetry.

Another group of investigations that seems to play an important part in the future development of the theory of evolution relates to the study of what is known as organic symmetry.

The old instinctive idea of symmetry must often have suggested other oekumene balancing the known world in the other quarters of the globe.

And, if Kant was overridden by a love of symmetry, Reid's indifference to form and system is an even more dangerous defect.

A pause in the development follows, during which no new mesenteries are formed, and then the six-rayed symmetry characteristic of a normal Actinian zooid is completed by the formation of the mesenteries V, V in the lateral chambers, and VI, VI in the sulcolateral chambers, their muscle-banners being so disposed that they form couples respectively with II, II and I, I.

In many of these so-called rugose forms the septa have a characteristic arrangement, differing from that of recent corals chiefly in the fact that they show a tetrameral instead of a hexameral symmetry.

This arrangement, however, is by no means characteristic even of the Zaphrentidae, and in the family Cyathophyllidae most of the genera exhibit a radial symmetry in which no trace of the bilateral arrangement described above is recognizable, and indeed in the genus Cyathophyllum itself a radial arrangement is the rule.

The general structure of this coral leaves no doubt that it is closely allied to the Astraeidae, but in the young calicles a tetrameral symmetry is indicated by the presence of four large septa placed at right angles to one another.

The orocentral was, it must be admitted, a theoretical conception due to a desire for symmetry, and was not confirmed by anything 1p _.

Study of the earliest larval stages has always led to the conclusion that the Echinoderms must have descended from some freely-moving form with a bilateral symmetry, and, connecting this with the ideas just mentioned, we reach the conception that this supposed bilateral ancestor (or Dipleurula) may have become fixed, and may have gradually acquired a radial symmetry in consequence of its sedentary mode of life.

The different extent of quinqueradiate symmetry in the different classes would thus depend on the period at which they diverged from the sedentary stock.

It might be possible to prove the origin of all classes from Pelmatozoa, without thereby explaining the origin of such fundamental features as radial symmetry, the developmental metamorphosis, and the torsion that affects both gut and body-cavities during that process; but the acceptance of a Dipleurula as the common ancestor necessitates an explanation of these features.

Although, in the extreme correlation of the radial food-grooves, nerves, watervessels, and so forth, with a radiate symmetry of the theca, such a type differs from the Cystidea, while in the possession of jointed processes from the radial plates, bearing the grooves and the various body-systems outwards from the theca, it differs from all other Echinoderms, nevertheless ancient forms are known which, if they are not themselves the actual links, suggest how the crinoid type may have been evolved from some of the more regular cystids.

Since this must have, on our theory, enclosed the parietal canal from the anterior coelom, it is possible that the genital products were developed from the lining cells of that cavity, and that the genital pore was nothing but its original pore not yet united with that from the water-sac. The concrescence of these pores can be traced in other cystids; but as the genital organs became affected by radial symmetry the original function of the duct was lost, and the reproductive elements escaped to the exterior in another way.

At last a quinqueradiate symmetry influenced the plates of the theca, partly through the development of a plate at the end of each groove (terminal), partly through plates at the aboral pole of the theca (basals and infrabasals) arising in response to mechanical pressure, but soon intimately connected with the cords of an aboral nervous system.

The thecal plates, however irregular in some species, always show defined basals and a distinct plate ("radial") at the end of each ambulacrum; they are in all cases so far affected by pentamerous symmetry that their sutures never cross the ambulacra.

Of the primary, secondary and tertiary alcohols having the same empirical formula, the primaryhave the highest, and the tertiary the lowest boiling point; this is in accordance with the fairly general rule that a gain is symmetry is attended by a fall in the boiling point.

By these momentous inductions the geometrical theory of the solar system was perfected, and a hitherto unimagined symmetry was perceived to regulate the mutual relations of its members.

With its symmetry, activity, strength and endurance the Clydesdale is easily broken to harness, and makes an excellent draught horse.

Owing to the approximate symmetry of the American and Asiatic continents it does not seem likely that the inequality of snowfall would produce an appreciable effect.

Alternatively, the symmetry operators can be input explicitly, each separated with a ' * '.

Her figure was carelessly wrapped in a loose gown, trimmed with fur; but its grace indicated its symmetry.

Symmetry is critical between both brows to prevent a skewed, disproportionate appearance.

In Symmetry contrast to the cyclic flowers are those, as in Magnoli of the flower.

In such circumstances, however, a flower has been called symmetrical, provided the parts of the other whorls are normal, - the permanent state of the pistil not being taken into account in determining symmetry.

Symmetry, then, in botanical language, has reference to a certain definite numerical relation of parts.

The symmetry which is most commonly met with is trimerous and pentamerous - the former occurring generally among monocotyledons, the latter among dicotyledons.

In contrast with this are polysymmetrical or actinomorphic flowers, which have a radial symmetry and can be divided by several planes into several exactly similar portions; such are all regular, symmetrical flowers.

By suppression or non-appearance of a part at the place where it ought to appear if the structure was normal, the symmetry or completeness of the flower is disturbed.

In all these cases the want of symmetry is traced to the suppression of certain parts.

Degeneration, or the transformation of parts, often gives rise either to an apparent want of symmetry or to irregularity in form.