Type Alias Dimension 

pub type Dimension = dyn Dimension<Th = Z0, Kind = dyn Kind, L = PInt<UInt<UInt<UTerm, B1>, B0>>, M = Z0, I = Z0, N = Z0, T = NInt<UInt<UTerm, B1>>, J = Z0>;

Dimension of diffusion coefficient, L²T⁻¹ (base unit square meter per second, m² · s⁻¹).