bilateral symmetry

n. Symmetrical arrangement, as of an organism or a body part, along a central axis, so that the body is divided into equivalent right and left halves by only one plane.

bilateral symmetry

n (Biology) the property of an organism or part of an organism such that, if cut in only one plane, the two cut halves are mirror images of each other. See also radial symmetry

bilat′eral sym′metry

n. a basic body plan in which the left and right sides of the organism can be divided into approximate mirror images of each other. Compare radial symmetry. [1850–55]

bi·lat·er·al symmetry

(bī-lăt′ər-əl) Symmetrical arrangement of an organism or part of an organism along a central axis. A bilaterally symmetrical organism or part is divided into two equal halves. Compare radial symmetry.

Thesaurus

Noun

bilateral symmetry - the property of being symmetrical about a vertical planebilateralism, bilateralitysymmetricalness, symmetry, correspondence, balance - (mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane

Bilateral Symmetry

bilateral symmetry

[bī′lad·ə·rəl ′sim·ə·trē] (biology) Symmetry such that the body can be divided by one median, or sagittal, dorsoventral plane into equivalent right and left halves, each a mirror image of the other.

bilateral symmetry

A balanced arrangement of identical similar elements about a central axis.

Bilateral Symmetry

two-sided symmetry in organisms; manifested in the fact that the body is divided by a medial plane into right and left halves, each of which is the mirror image of the other. Bilateral symmetry occurs among worms, arthropods, and vertebrates and also plant organs—for example, many stems with leaves or lateral shoots arranged in two rows, stems of many cacti, and so on. Leaves in which the upper and lower surfaces differ in structure are also called bilateral.

bilateral symmetry

symmetry

[sim´ĕ-tre] correspondence in size, form, and arrangement of parts on opposite sides of a plane, or around an axis. adj., adj symmet´rical.bilateral symmetry the configuration of an irregularly shaped body (such as the human body or that of higher animals) that can be divided by a longitudinal plane into halves that are mirror images of each other.radial symmetry that in which the body parts are arranged regularly around a central axis.

bilateral symmetry

n. Symmetrical arrangement, as of an organism or a body part, along a central axis, so that the body is divided into equivalent right and left halves by only one plane.

bilateral symmetry

adjective Referring to a form divisible into equal mirror halves in one plane only—e.g., the right half of an organism mirrors the left.

bilateral symmetry

adjective Referring to a form divisible into equal mirror halves in one plane only

bilateral symmetry

an animal body structure in which there is a head and a rear with the body organs arranged so that a section through the midline from dorsal (upper) to ventral (lower) surfaces would divide the organism into almost identical right and left halves. Most higher invertebrates (e.g. PLATYHELMINTHS, ANNELIDS, ARTHROPODS) and all vertebrates are bilaterally symmetrical. Compare RADIAL SYMMETRY.

bilateral symmetry

bilateral symmetry

bilateral symmetry

bilat′eral sym′metry

bi·lat·er·al symmetry

Bilateral Symmetry

bilateral symmetry

bilateral symmetry

Bilateral Symmetry

bilateral symmetry

symmetry

bilateral symmetry

bilateral symmetry

bilateral symmetry

bilateral symmetry

bilateral symmetry

Synonyms for bilateral symmetry

noun the property of being symmetrical about a vertical plane

Synonyms

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