transfer

https://doi.org/10.1351/goldbook.T06439
Movement of a component within a system or across its boundary. It may be expressed using different kinds of quantities, e.g rates of change dQdt or ΔQΔt. Examples are: mass rate, dmBdt or ΔmBΔt; substance rate, dnBdt or ΔnBΔt.
Source:
PAC, 1992, 64, 1569. (Quantities and units for metabolic processes as a function of time (IUPAC Recommendations 1992)) on page 1573 [Terms] [Paper]