given or felt by each toward the other; mutual

reciprocal respect.

given, performed, felt, etc., in return

reciprocal aid.

corresponding; matching; complementary; equivalent

reciprocal privileges at other health clubs.

Grammar . (of a pronoun or verb) expressing mutual relationship or action

Each other and one another are reciprocal pronouns.

inversely related or proportional; opposite.

Mathematics . noting expressions, relations, etc., involving reciprocals

a reciprocal function.

Navigation . bearing in a direction 180? to a given direction; back.

something that is reciprocal to something else; equivalent; counterpart; complement.

Also called multiplicative inverse. Mathematics . the ratio of unity to a given quantity or expression; that by which the given quantity or expression is multiplied to produce unity

The reciprocal of x is 1/ x.

adjective

independent , singular

adjective

changeable , companion , complementary , convertible , coordinate , correlative , corresponding , dependent , double , duplicate , equivalent , exchangeable , fellow , give-and-take * , interchangeable , interdependent , matching , mutual , reciprocative , reciprocatory , twin , exchanged , shared