NeoDict for iPhone.

Available free in the App Store

View
NeoDict for Android.

Available free in the Play Store

View
English Dictionary
▪ detective work▪ detector▪ detent▪ detente▪ detention
◊ detent
detent
n : a hinged device that fits into a notch of a ratchet to move
a wheel forward or prevent it from moving backward [syn:
{pawl}, {click}, {dog}]