WordWeb Online

1. The act of making or doing something in return
    
2. Alternating back-and-forth movement
    
3. Mutual interaction; the activity of reciprocating or exchanging (especially information)
   - interchange, give-and-take

Derived forms: reciprocations

See also: reciprocate

Type of: getting even, interaction, motility, motion, move, movement, paying back, return

Encyclopedia: Reciprocation