Definition from Wiktionary, the free dictionary
Etymology 1 
- Flexible, pliant, bendable.
- He's so limber that he can kiss his knee without bending it.
- The bargeman that doth row with long and limber oar.
Derived terms 
flexible — see flexible
Etymology 2 
limber (plural limbers)
Usage notes 
- Sometimes the plural limbers was used to refer to a single such vehicle.
- (obsolete) To prepare an artillery piece for transportation (i.e., to attach it to its limber.)
- To cause to become limber; to make flexible or pliant.
- (Can we find and add a quotation of Richardson to this entry?)
- Oxford English Dictionary, 2nd ed., 1989.