Webster's English Dictionary

Enter the word to look up:

equivalence

equiv.a.lence also equiv.a.len.cy \i-'kwiv(-*)-l*n(t)s\ \-l*n-se-\ n 1a: 
   the state or property of being equivalent  1b1: the relation holding 
   between two statements if they are either both tr ue or both false 1b2: the 
   relation holding between two statements if to affirm one and to de ny the 
   other would result in a contradiction 2: a presentation of terms as 
   equivalent  3: equality in metrical value of a regular foot and one in 
   which there are  substitutions