1. symmetry(n = noun.attribute) balance, correspondence, symmetricalness - (mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane;
is a kind of spatial property, spatiality
has particulars: geometrical regularity, regularity, bilateral symmetry, bilateralism, bilaterality, radial symmetry
Antonym: asymmetry
Derived forms adjective symmetric1, verb symmetrise1, verb symmetrize1
2. symmetry(n = noun.shape) proportion - balance among the parts of something;
is a kind of balance, counterbalance, equilibrium, equipoise
Derived forms adjective symmetric1, verb symmetrise1, verb symmetrize1
3. symmetry(n = noun.attribute) isotropy - (physics) the property of being isotropic; having the same value when measured in different directions;
is a kind of property
1. A due proportion of the several parts of a body to each other; adaptation of the form or dimensions of the several parts of a thing to each other; the union and conformity of the members of a work to the whole. [1913 Webster]
2. The law of likeness; similarity of structure; regularity in form and arrangement; orderly and similar distribution of parts, such that an animal may be divided into parts which are structurally symmetrical. [1913 Webster]
" Bilateral symmetry, or two-sidedness, in vertebrates, etc., is that in which the body can be divided into symmetrical halves by a vertical plane passing through the middle; radial symmetry, as in echinoderms, is that in which the individual parts are arranged symmetrically around a central axis; serial symmetry, or zonal symmetry, as in earthworms, is that in which the segments or metameres of the body are disposed in a zonal manner one after the other in a longitudinal axis. This last is sometimes called metamerism." [1913 Webster]
3. Equality in the number of parts of the successive circles in a flower. [1913 Webster]
symmetry, n. (pl. -ies)
1 a correct proportion of the parts of a thing; balance, harmony. b beauty resulting from this.
2 a a structure that allows an object to be divided into parts of an equal shape and size and similar position to the point or line or plane of division. b the possession of such a structure. c approximation to such a structure.
3 the repetition of exactly similar parts facing each other or a centre.
4 Bot. the possession by a flower of sepals and petals and stamens and pistils in the same number or multiples of the same number.
Derivative:
symmetric adj. symmetrical adj. symmetrically adv. symmetrize v.tr. (also -ise).
Etymology:
obs. F symm{eacute}trie or L summetria f. Gk (as SYN-, metron measure)
N equality, parity, coextension, symmetry, balance, poise, evenness, monotony, level, equivalence, equipollence, equipoise, equilibrium, equiponderance, par, quits, a wash, not a pin to choose, distinction without a difference, six of one and half a dozen of the other, tweedle dee and tweedle dum, identity, similarity, equalization, equation, equilibration, co-ordination, adjustment, readjustment, drawn game, drawn battle, neck and neck race, tie, draw, standoff, dead heat, match, peer, compeer, equal, mate, fellow, brother, equivalent, equal, even, level, monotonous, coequal, symmetrical, coordinate, on a par with, on a level with, on a footing with, up to the mark, equiparant, equivalent, tantamount, indistinguishable, quits, homologous, synonymous, resolvable into, convertible, much at one, as broad as long, neither more nor less, much the same as, the same thing as, as good as, all one, all the same, equipollent, equiponderant, equiponderous, equibalanced, equalized, drawn, half and half, isochronal, isochronous isoperimetric, isoperimetrical, isobath, isobathic, equally, pari passu, ad eundum, caeteris paribus, in equilibrio, to all intents and purposes, it comes to the same thing, it amounts to the same thing, what is sauce for the goose is sauce for the gande.
N order, regularity, uniformity, symmetry, lucidus ordo, music of the spheres, gradation, progression, series, subordination, course, even tenor, routine, method, disposition, arrangement, array, system, economy, discipline orderliness, rank, place, orderly, regular, in order, in trim, in apple-pie order, in its proper place, neat, tidy, en regle, well regulated, correct, methodical, uniform, symmetrical, shipshape, businesslike, systematic, unconfused &c (confuse), arranged, in order, methodically, in turn, in its turn, by steps, step by step, by regular steps, by regular gradations, by regular stages, by regular intervals, seriatim, systematically, by clockwork, gradatim, at stated periods, natura non facit saltum, order is heaven's first law, order from disorder sprung, ordo est parium dispariumque rerum sua loca tribue.
N beauty, the beautiful, to kalon, le beau ideal, aesthetics, callaesthetics, pulchritude, form, elegance, grace, beauty unadorned, natural beauty, symmetry, comeliness, fairness, polish, gloss, good effect, good looks, belle tournure, trigness, bloom, brilliancy, radiance, splendor, gorgeousness, magnificence, sublimity, sublimification, concinnity, delicacy, refinement, charm, je ne sais quoi, style, Venus, Aphrodite, Hebe, the Graces, Peri, Houri, Cupid, Apollo, Hyperion, Adonis, Antionous, Narcissus, peacock, butterfly, garden, flower of, pink of, bijou, jewel, work of art, flower, flow'ret gay, wildflower, rose, lily, anemone, asphodel, buttercup, crane's bill, daffodil, tulip, tiger lily, day lily, begonia, marigold, geranium, lily of the valley, ranunculus, rhododendron, windflower, pleasurableness, beautifying, landscaping, landscape gardening, decoration, calisthenics, beauty, hunk (of men), beautiful, beauteous, handsome, gorgeous, pretty, lovely, graceful, elegant, prepossessing, attractive, delicate, dainty, refined, fair, personable, comely, seemly, bonny, good-looking, well-favored, well-made, well-formed, well- proportioned, proper, shapely, symmetrical, harmonious, sightly, fit to be seen, passable, not amiss, goodly, dapper, tight, jimp, gimp, janty, jaunty, trig, natty, quaint, trim, tidy, neat, spruce, smart, tricksy, bright, bright eyed, rosy cheeked, cherry cheeked, rosy, ruddy, blooming, in full bloom, brilliant, shining, beamy, beaming, sparkling, splendid, resplendent, dazzling, glowing, glossy, sleek, rich, superb, magnificent, grand, fine, sublime, showy, specious, artistic, artistical, aesthetic, picturesque, pictorial, fait a peindre, well-composed, well grouped, well varied, curious, enchanting becoming, ornamental, undeformed, undefaced, unspotted, spotless, auxilium non leve vultus habet, beauty born of murmuring sound, flowers preach to us if we will hear, gratior ac pulchro veniens in corpore virtus, none but the brave deserve the fair, thou who hast the fatal gift of beauty.
N centrality, centricalness, center, middle, focus, core, kernel, nucleus, nucleolus, heart, pole axis, bull's eye, nave, navel, umbilicus, backbone, marrow, pith, vertebra, vertebral column, hotbed, concentration, centralization, symmetry, center of gravity, center of pressure, center of percussion, center of oscillation, center of buoyancy, metacenter, central, centrical, middle, azygous, axial, focal, umbilical, concentric, middlemost, rachidian, spinal, vertebral, middle, midst, centrally.
N symmetry, shapeliness, finish, beauty, proportion, eurythmy, uniformity, parallelism, bilateral symmetry, trilateral symmetry, multilateral symmetry, centrality, arborescence, branching, ramification, arbor vitae, symmetrical, shapely, well set, finished, beautiful, classic, chaste, severe, regular, uniform, balanced, equal, parallel, coextensive, arborescent, arboriform, dendriform, dendroid, branching, ramous, ramose, filiciform, filicoid, subarborescent, papilionaceous, fuji-shaped, fujigata.
bilateral symmetry, mirror symmetry, radial symmetry, space-reflection symmetry