Definition of calders:
(n) :
A number of rivers:
(n) :
A river in West Yorkshire, England, which flows into the River Aire.
(n) :
A river in Cumbria, England, which flows into the Irish Sea at Sellafield.
(n) :
A river in Lancashire, England, which joins the River Ribble.
(n) :
A river in Lancashire which joins the River Wyre at Catterall.
(n) :
A tributary of the River Spey in Highland council area, Scotland.