fieldline
nounUK /ˈfiːldlaɪn/
US /ˈfiːldlaɪn/
A line that shows the direction of a force, like the pull of a magnet.
The iron filings lined up along each magnetic fieldline.
RELATED WORDS
OTHER MEANINGS
2. A line drawn on a map or chart to connect points of equal value, such as on a weather map.
The weather map's fieldlines showed where the wind was strongest.
3. A boundary line marking the edge of a sports field or playing area.
The player stepped over the fieldline and the referee blew the whistle.
4. A line of force in an electric or gravitational field.
Scientists drew the electric fieldlines around the charged sphere.