bijugate

from The American Heritage® Dictionary of the English Language, 4th Edition

• adj. Botany Relating to a pinnate leaf with two pairs of leaflets.

from Wiktionary, Creative Commons Attribution/Share-Alike License

• adj. Having two pairs of leaflets

from the GNU version of the Collaborative International Dictionary of English

• adj. Having two pairs, as of leaflets.

from The Century Dictionary and Cyclopedia

• . In numismatics, bearing two profile heads, one of them overlapping the other. See cut under accolated.
• 2. In botany, having two pairs of leaflets or pinnæ: used of pinnated leaves.