bipinnate

adjective Botany.

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

adjective

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.