locator outer marker
Word Rarity
Rare
Frequency: Zipf frequency 2.95 in modern English
26
Scrabble Score
18
Letters
5
Syllables
10
Unique Chars
Meaning
noun
A ground-based radio navigation aid consisting of a pair of colocated radio beacons at the final approach fix of an ILS or IGS approach course: an NDB to guide aircraft to the approach fix, and an outer marker to alert aircraft as they pass over the station.
American usage
Usage
- American usage