OBSOLETE. The directed movement of molecular hydrogen (H2) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
Source:
GOC:jl
Comment
The reason for obsoletion is that there molecular hydrogen (H2) diffuses passively through membranes (see https://www.researchgate.net/post/How_molecular_hydrogen_is_transported_through_the_cytoplasmic_membrane_of_Escherichia_coli).