e/Railroad chronometer

Information
has gloss	eng: Railroad chronometers, or Railroad Standard Watches, are specialized timepieces that once were crucial for safe and correct operation of trains in many countries, including England, the United States, Canada, etc. A system called Timetable and Train Order, which relied on highly accurate timekeeping, was used to ensure that two trains could not be on the same stretch of track at the same time.
lexicalization	eng: Railroad chronometer
instance of	(noun) a timepiece that shows the time of day clock

Meaning
French
has gloss	fra: Un chronomètre de chemin de fer est une montre qui respecte les normes édictée aux États-Unis pour obtenir l'accord des compagnies de chemin de fer.
lexicalization	fra: Chronometre de chemin de fer
lexicalization	fra: Chronomètre de chemin de fer
lexicalization	fra: Chronomètre de chemin-de-fer