radial symmetry


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radial symmetry

n.
Symmetrical arrangement of constituents, especially of radiating parts, about a central point.

radially symmetrical adj.

radial symmetry

n
(Biology) a type of structure of an organism or part of an organism in which a vertical cut through the axis in any of two or more planes produces two halves that are mirror images of each other. Compare bilateral symmetry

ra′dial sym′metry


n.
a basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis. Compare bilateral symmetry.
[1885–90]

ra·di·al symmetry

(rā′dē-əl)
The arrangement of similar forms or features around a central point. The bodies of echinoderms, such as starfish and sea urchins, are radially symmetrical. Compare bilateral symmetry.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.radial symmetry - the property of symmetry about an axis; "the starfish illustrates radial symmetry"
symmetricalness, symmetry, correspondence, balance - (mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane
radial asymmetry - the absence of symmetry about an axis
References in periodicals archive ?
Jellyfish and many other marine animals--such as sea urchins, starfish, and sea anemones--have what is known as radial symmetry. Although the bodies of these animals have a distinct top and bottom, they do not have distinguishable left and right sides--an arrangement, present in humans and other higher life forms, known as bilateral symmetry.
He proposed five different distribution patterns of ganglion cells, divided into two groups: those that show isodensity contours with a high degree of radial symmetry without the presence of visual streak; and mixed retinas in which this band is combined, or not, with an area.
They were to create at least two patterns that demonstrated radial symmetry on it with the color sticks and markers.
Radial symmetry was found in pollen of 30% plants, bilateral in 60% plants and 10% were Asymmetrical, non-fixiform.
Be sy'n nodweddiadol o bob aelod o'r ffylwm yma ydi eu bod nhw i gyd yn arddangos cymesuredd rheiddiol (radial symmetry - hynny yw cymesuredd o gwmpas un pwynt canolog) ac maen nhw i gyd yn anifeiliaid sy'n byw yn y mor.
John Falcone then demonstrated that crossword-style radial symmetry is completely possible by designing a wonderful 11x11 symmetrical crossdrome puzzle.
Horiuchi, On radial symmetry and its breaking in the Caffarelli-Kohn-Nirenberg type inequalities, Math.
Qinsong Shi and Toshiaki AdaCHI Radial symmetry and its breaking in the Caffarelli-Kohn-Nirenberg type inequalities for p = 1 ...
The radial symmetry of the pond which Thoreau tested and measured pointed towards the mechanics of glacial melting and kettle formation; it suggested a natural law of the landscape and a moral law of human souls, supporting Thoreau's claim that "a rule of the two diameters [...] draws lines through the length and breadth of the aggregate of a man's particular daily behaviors [...] where they intersect will be the height or depth of his character" (Walden 196).
(2006) implemented a face detection method with high precision based on radial symmetry transform and eye-pair checking.
i) A highly effective set of features to be extracted from iris images [based on the radial symmetry transform (RST)] and;
However, the consistent organization of this type of motor control system in a wide variety of extant species argues that it also represents an efficient means of achieving the unique problem of non-polarized control of a broad two-dimensional sheet of effectors, and thus is more a consequence of the radial symmetry and a need to sense the environment from multiple sites spatially arranged around the margin of the bell.