| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024sym•met•ri•cal /sɪˈmɛtrɪkəl/USA pronunciation also symˈmet•ric, adj. - Biologycharacterized by or showing symmetry.
sym•met•ri•cal•ly, adv. See -meter-. WordReference Random House Unabridged Dictionary of American English © 2024sym•met•ri•cal (si me′tri kəl),USA pronunciation adj. - Biologycharacterized by or exhibiting symmetry;
well-proportioned, as a body or whole;
regular in form or arrangement of corresponding parts. - Mathematics[Geom.]
- 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.
- noting a set consisting of pairs of points having this relation with respect to the same axis.
- 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).
- noting a set consisting of pairs of points having this relation with respect to the same center.
- MathematicsOften, symmetric.
- noting a square matrix that is equal to its transpose.
- noting a dyad or dyadic that is equal to its conjugate.
- noting a relation in which one element in relation to a second implies the second in relation to the first.
- [Bot.]
- Botanydivisible into two similar parts by more than one plane passing through the center;
actinomorphic. - Botany(of a flower) having the same number of parts in each whorl.
- Chemistry
- having a structure that exhibits a regular repeated pattern of the component parts.
- Chemistrynoting a benzene derivative in which three substitutions have occurred at alternate carbon atoms.
- Pathologyaffecting corresponding parts simultaneously, as certain diseases.
Also, sym•met′ric. - symmetr(y) + -ical 1745–55
- 1.See corresponding entry in Unabridged balanced, orderly, regular, congruent.
|