Meaning of RECIPROCAL in English

I. ri-ˈsi-prə-kəl adjective

Etymology: Latin reciprocus returning the same way, alternating

Date: 1570


a. : inversely related : opposite

b. : of, constituting, or resulting from paired crosses in which the kind that supplies the male parent of the first cross supplies the female parent of the second cross and vice versa

2. : shared, felt, or shown by both sides

3. : serving to reciprocate : consisting of or functioning as a return in kind

the reciprocal devastation of nuclear war


a. : mutually corresponding

agreed to extend reciprocal privileges to each other's citizens

b. : marked by or based on reciprocity

reciprocal trade agreements

• re·cip·ro·cal·ly -k(ə-)lē adverb

II. noun

Date: 1570

1. : something in a reciprocal relationship to another

2. : either of a pair of numbers (as 2/3 and 3/2 or 9 and 1/9) whose product is one ; broadly : multiplicative inverse

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.