terete

/təˈriːt/
adjective
  1. Having a smooth, cylindrical, or slightly tapering shape, especially in reference to plant stems, leaves, or animal body parts.
    • The cactus has terete stems that store water efficiently.
    • Botanists noted the terete leaves of the sedge plant during their field study.
    • The worm's terete body allowed it to move easily through the soil.
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