1. moving backward and forward in a straight line
Usage: technical; mechanical

1. present participle of reciprocate; giving or doing something in return for what someone has given or done

Examples

• She smiled warmly, reciprocating his friendly greeting.
• He was reciprocating her kindness by helping with the project.
• The reciprocating engine converts linear motion into rotational motion.
• A reciprocating saw moves the blade back and forth rapidly.
• They were reciprocating each other’s invitations throughout the year.
• The reciprocating pump uses pistons that move up and down.
• She appreciated him reciprocating her feelings of friendship.