symmetrically

symmetrical

[si-me-tri-kuhl]
1.
characterized by or exhibiting symmetry; well-proportioned, as a body or whole; regular in form or arrangement of corresponding parts.
2.
Geometry.
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. Mathematics.
a.
noting a square matrix that is equal to its transpose.
b.
c.
noting a relation in which one element in relation to a second implies the second in relation to the first.
4.
Botany.
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.
Chemistry.
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.

Origin:
1745–55; symmetr(y) + -ical

symmetricalness, noun

1. balanced, orderly, regular, congruent.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
 symmetrical (sɪˈmɛtrɪkəl) —adj 1. Compare asymmetric possessing or displaying symmetry 2. maths a.  (of two points) capable of being joined by a line that is bisected by a given point or bisected perpendicularly by a given line or plane: the points (x, y) and (--x, --y) are symmetrical about the origin b.  (of a configuration) having pairs of points that are symmetrical about a given point, line, or plane: a circle is symmetrical about a diameter c.  (of an equation or function of two or more variables) remaining unchanged in form after an interchange of two variables: x + y = z is a symmetrical equation 3. chem (of a compound) having a molecular structure in which substituents are symmetrical about the molecule 4. botany another word for isomerous 5. Also: symmetric (of a disease, infection, etc) affecting both sides of the body or corresponding parts, such as both legs sym'metrically —adv sym'metricalness —n

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American Heritage
Science Dictionary
 symmetric (sĭ-mět'rĭk) or symmetrical   (sĭ-mět'rĭk)  Pronunciation Key  Relating to or exhibiting symmetry. Relating to a logical or mathematical relation between two elements such that if the first element is related to the second element, the second element is related in like manner to the first. The relation a = b is symmetric, whereas the relation a > b is not.
The American Heritage® Science Dictionary
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Example sentences
Symmetrically spreading, with dense blue-green foliage.
The form groups should be symmetrically related to, if not identical with, the
function groups.
Tiny diamonds etch its design--olive branches with leaves--and, perched
symmetrically upon them, eight doves.
But the animals grow symmetrically, with each half of the body developing
independently of the other.
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