material,
stuff things needed for doing or making something; "writing materials"; "useful teaching materials"
explosive a chemical substance that undergoes a rapid chemical change (with the production of gas) on being heated or struck
reactant a chemical substance that is present at the start of a chemical reaction
alar,
daminozide a chemical sprayed on fruit trees to regulate their growth so the entire crop can be harvested at one time
carrier (genetics) an organism that possesses a recessive gene whose effect is masked by a dominant allele; the associated trait is not apparent but can be passed on to offspring
congener a whole (a thing or person) of the same kind or category as another; "lard was also used, though its congener, butter, was more frequently employed"; "the American shopkeeper differs from his European congener"
pesticide a chemical used to kill pests (as rodents or insects)
phytochemical a chemical substance obtained from plants that is biologically active but not nutritive
product an artifact that has been created by someone or some process; "they improve their product every year"; "they export most of their agricultural production"
