bilateral vs duple

bilateral

• Having two sides. 

• Having bilateral symmetry. 

• Binding on both of the two parties involved. 

• Involving both sides equally. 

• Involving descent or ascent regardless of sex and side of the family. 

• A meeting between two people or groups. 

duple

• Double. 

• Having two beats in each foot. 

• Having two beats, or a multiple of two beats, in each measure.