(organic chemistry) Any chemical that contains amphetamine in its chemical structure or can be described by a chemical substitution of the amphetamine compound.

plural of substituted amphetamine

(Scotland) The acting sheriff in a Scottish county or city, like the sheriff-depute appointed by the Crown, but unlike the sheriff-depute forced to reside within his judicial district, and forbidden to take other employment.

(economics) a good that a consumer perceives as similar to another good, which decreases the demand for that other good

(philosophy) Synonym of indiscernibility of identicals

(organic chemistry) A system for naming organic compounds in which a functional group is used either as a prefix or a suffix to the name of a parent compound e.g. trinitrotoluene or benzenesulfonic acid

(sports) A rule in some sports that allows players to enter and leave the game for other players many times during the course of the game, and for coaches to bring in and take out players an unlimited number of times.

plural of free substitution

plural of blood substitution

(rugby) A temporary substitution for a visibly-bleeding player who must leave the field of play for first-aid treatment.