zygomorphous
(a.)左右相稱的
Zyg·o·mor·phic Zyg·o·mor·phous a. Biol. Symmetrical bilaterally; -- said of organisms, or parts of organisms, capable of division into two symmetrical halves only in a single plane.
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zygomorphous
adj : capable of division into symmetrical halves by only one
longitudinal plane passing through the axis [syn: zygomorphic,
bilaterally symmetrical] [ant: actinomorphic]