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# symmetrical

1. characterized by or exhibiting symmetry; well-proportioned, as a body or whole; regular in form or arrangement of corresponding parts.
2. Geom.
a. noting two points in a plane such that the line segment joining the points is bisected by an axis: Points (1, 1) and (1, -1) are symmetrical with respect to the x-axis.
b. noting a set consisting of pairs of points having this relation with respect to the same axis.
c. noting two points in a plane such that the line segment joining the points is bisected by a point or center: The points (1, 1) and (-1, -1) are symmetrical with respect to (0, 0).
d. noting a set consisting of pairs of points having this relation with respect to the same center.
3. Often, symmetric. Math.
a. noting a square matrix that is equal to its transpose.
b. noting a dyad or dyadic that is equal to its conjugate.
c. noting a relation in which one element in relation to a second implies the second in relation to the first.
4. Bot.
a. divisible into two similar parts by more than one plane passing through the center; actinomorphic.
b. (of a flower) having the same number of parts in each whorl.
5. Chem.
a. having a structure that exhibits a regular repeated pattern of the component parts.
b. noting a benzene derivative in which three substitutions have occurred at alternate carbon atoms.
6. affecting corresponding parts simultaneously, as certain diseases.
Also, symmetric.
[1745-55; SYMMETR(Y) + -ICAL]
Syn. 1. balanced, orderly, regular, congruent.

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Universalium. 2010.

Synonyms:

### Look at other dictionaries:

• Symmetrical — Sym*met ric*al, a. [Cf. F. sym[ e]trique. See {Symmetry}.] 1. Involving or exhibiting symmetry; proportional in parts; having its parts in due proportion as to dimensions; as, a symmetrical body or building. [1913 Webster] 2. (Biol.) Having the… …   The Collaborative International Dictionary of English

• symmetrical — index coequal, coextensive, equal, regular (orderly) Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

• symmetrical — 1570s (implied in symmetrically), from SYMMETRY (Cf. symmetry) + ICAL (Cf. ical) …   Etymology dictionary

• symmetrical — [adj] well proportioned balanced, commensurable, commensurate, equal, in proportion, proportional, regular, shapely, well formed; concepts 480,485,579 Ant. asymmetrical, different, disproportioned, irregular, uneven, unsymmetrical …   New thesaurus

• symmetrical — tread is the most common tread design. Both halves of the tread face are the same design. It does not matter which side faces out. See asymmetrical Tread directional tire …   Dictionary of automotive terms

• symmetrical — ► ADJECTIVE ▪ made up of exactly similar parts facing each other or around an axis; showing symmetry. DERIVATIVES symmetric adjective symmetrically adverb …   English terms dictionary

• symmetrical — [si me′tri kəl] adj. [ SYMMETR(Y) + ICAL] having or showing symmetry; specif., a) Bot. that can be divided into similar halves by a plane passing through the center; also, having the same number of parts in each whorl of leaves: said of a flower… …   English World dictionary

• symmetrical — or symmetric adjective Date: 1653 1. having, involving, or exhibiting symmetry 2. having corresponding points whose connecting lines are bisected by a given point or perpendicularly bisected by a given line or plane < symmetrical curves > 3.… …   New Collegiate Dictionary

• symmetrical — (also symmetric) adj. VERBS ▪ appear, be, look ▪ become ADVERB ▪ highly ▪ highly s …   Collocations dictionary

• symmetrical — adj. symmetrical to, with * * * [sɪ metrɪk(ə)l] with symmetrical to …   Combinatory dictionary