air-movementchart

noun
UK /eə ˈmuːvmənt tʃɑːt/
US /er ˈmuːvmənt tʃɑːrt/

A chart that shows how air moves from one place to another.

The teacher showed us an air-movementchart to explain how wind travels across the room.


OTHER MEANINGS

2. A diagram used by engineers to track how air flows through a building.

The engineer checked the air-movementchart before fixing the air conditioning.

3. A weather map that shows the direction and strength of moving air.

The weather report used an air-movementchart to show strong winds coming from the north.

4. A simple picture that helps kids see how air travels in and out of a room.

We drew an air-movementchart with arrows to show fresh air coming through the window.