nonchemical
/nɑnˈkɛmɪkəl/
adjective
- Not involving or using chemicals; free from synthetic or artificial chemical substances.
- She bought a nonchemical sunscreen made from zinc oxide.
- They prefer nonchemical pest control methods like traps and natural predators.
- The farm uses only nonchemical fertilizers such as compost.
- Not relating to the science of chemistry or chemical processes.
- The nonchemical aspects of the experiment included measuring temperature and time.
- The report separated chemical and nonchemical factors affecting water quality.
- His research focused on the nonchemical properties of the material, like its strength.