what does field line mean?

FIELD LINE as NOUN

Meaning
- an imaginary line in a field of force
- direction of the line at any point is the direction of the force at that point
Synonym(s)
- line of force (what does line of force mean?)
Hypernyms(s) field line is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
- line (what does line mean?)
Hyponym(s)
- electrical line of force (what does electrical line of force mean?)
- magnetic line of force (what does magnetic line of force mean?)