/di ray"leuhr/ , n.
a gear-shifting mechanism on a bicycle that shifts the drive chain from one sprocket wheel to another.
[ 1945-50; dérailleur lit., a device causing disengagement or derailing, equiv. to déraill ( er ) to DERAIL + -eur -EUR ]
/di ray"leuhr/ , n.
a gear-shifting mechanism on a bicycle that shifts the drive chain from one sprocket wheel to another.
[ 1945-50; dérailleur lit., a device causing disengagement or derailing, equiv. to déraill ( er ) to DERAIL + -eur -EUR ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012