outer marker
Word Rarity
Rare
Frequency: Zipf frequency 3.72 in modern English
17
Scrabble Score
11
Letters
4
Syllables
8
Unique Chars
Meaning
noun
A type of marker beacon placed to indicate the final approach fix of an ILS or IGS approach, triggering a continuous sequence of visual and aural Morse code dashes from the marker beacon receiver in the cockpit of an aircraft flying over the marker.