资料来源 : pyDict

产双胎的,二枝的,有二轴的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Biparous \Bip"a*rous\, a. [L. bis twice + parere to bring
   forth.]
   Bringing forth two at a birth.

资料来源 : WordNet®

biparous
     adj : producing two offspring at a time [syn: {twinning}]