/dee"toor, di toor"/ , n.
1. a roundabout or circuitous way or course, esp. one used temporarily when the main route is closed.
2. an indirect or roundabout procedure, path, etc.
v.i.
3. to make a detour; go by way of a detour.
v.t.
4. to cause to make a detour.
5. to make a detour around: We detoured Birmingham.
[ 1730-40 détour, OF destor, deriv. of destorner to turn aside, equiv. to des- DE- + torner to TURN ]