1. Herbaceous vine of tropical America and Africa
   - heartseed

Type of: soapberry vine

• biotypic
• biovular
• bioweapon
• biparous
• bipartisan
• bipartite
• bipartizan
• biped
• bipedal
• bipedalism
• biphenyl
• bipinnate
• bipinnate leaf
• bipinnatifid
• biplane
• biplane flying fish
• bipolar
• bipolar disorder
• bipolarity
• biprism
• biquadrate
• biquadratic
• biquadratic equation
• biquadratic polynomial
• biracial