English
hydrail
From hydro- + rail, coined in 2004 in the International Journal of Hydrogen Energy.
The story
From hydro- + rail, coined in 2004 in the International Journal of Hydrogen Energy.
Today it means
noun Any rail technology where vehicles use on-board hydrogen as a source of energy to power the motors.
Language periods are conventional ranges, not dates for this word.
Etymograph / hydrail