Absolute strength, also known as maximal strength, is defined as the amount of musculoskeletal force you can generate for one all-out effort, irrespective of time or bodyweight.  It is typically measured in terms of performance of a maximal, single repetition lift (one rep max [1RM]).
- Staley, Charles (n.d.). Quality Strength for Human Athletic Performance: A Guide to Speed Strength Training. thinkmuscle.com. Retrieved on 2008-08-03.