__ Wave, Mw; Mid-Range Radio Frequency Band
This page is the CodyCross answer for the clue below from Train Travel, Group 714, Puzzle 5 (Tilting Pendolino).
Question is: __ Wave, Mw; Mid-Range Radio Frequency Band
and the answer is: MEDIUM
Word Meaning:
MEDIUM — The material of the surrounding environment, e.g. solid, liquid, gas, vacuum, or a specific substance such as a solvent.
Definitions from Wiktionary.