what does electronic scanner mean?

ELECTRONIC SCANNER as NOUN

Meaning
- a radio receiver that that moves automatically across some selected range of frequencies looking for for some signal or condition
Synonym(s)
- scanner (what does scanner mean?)
Usage Example(s)
- they used scanners to monitor police radio channels
Hypernyms(s) electronic scanner is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
- detector (what does detector mean?)
Derived(s)
- scan (what does scan mean?)