The fundamental dimension of length, as defined by the SI standard.
(= Work-Dimension (* Force-Dimension Length-Dimension)) (= Area-Dimension (Expt Length-Dimension 2)) (= Energy-Dimension (* Mass-Dimension (* (Expt Length-Dimension 2) (Expt Time-Dimension -2)))) (= Force-Dimension (* Mass-Dimension (* Length-Dimension (Expt Time-Dimension -2))))