reciprocating

Meaning 1: action use

To exchange two things, with both parties giving one thing and taking another thing.

Examples

• I gave them apples from my tree; they reciprocated with a pie and some apple jelly.
• A reciprocating engine.

Meaning 2: action use (verb)

To give something else in response (where the "thing" may also be abstract, a feeling or action) To make a reciprocal gift

Examples

• I gave them apples from my tree; they reciprocated with a pie and some apple jelly.

Meaning 3: action use 2

To move backwards and forwards, like a piston

Examples

• A reciprocating engine.

Meaning 4: action use 3

To counter, retort or retaliate

Meaning 5: descriptive use

That moves backwards and forwards

Meaning 6: descriptive use (adjective)

That moves back and forth or up and down

Meaning 7: of engine types

That has one or more pistons that move back and forth or up and down