stepwise technique (adj.)

in thermal analysis
https://doi.org/10.1351/goldbook.12308
Indicates discrete, discontinuous changes in an experimental parameter, e.g., force, temperature, etc.
Source:
PAC, 2014, 86, 545. (ICTAC nomenclature of thermal analysis (IUPAC Recommendations 2014)) on page 549 [Terms] [Paper]