Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Pertaining to
organisms withbilateral symmetry , i.e. that has anaxis of symmetry that goes down from the top to bottom, such ashumans .
Etymologies
Sorry, no etymologies found.
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Examples
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The primordial bilateran probably lived about 600 million years ago but it could be even a billion.
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