adjective Botany.

  1. pinnate, as a leaf, with the divisions also pinnate.


  1. (of pinnate leaves) having the leaflets themselves divided into smaller leaflets

  1. Relating to compound leaves that grow opposite each other on a larger stem; twice-compound or twice-pinnate. Bipinnate leaves have a feathery appearance. The acacia, coffeetree, and silktree have bipinnate leaves.

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