schedule

¹sched·ule

noun
\ˈskej-(ˌ)ü(ə)l, ˈskej-əl, Canadian also ˈshej-, British usually ˈshed-(ˌ)yü(ə)l\

Definition of SCHEDULE

1

: a program or plan that indicates the sequence of each step or procedure <reinforcement schedules used in conditioning experiments>; especially : regimen <antibiotic schedules for treating Lyme disease>

2

often capitalized : an official list of drugs that are subject to the same legal controls and restrictions—usually used with a Roman numeral from I to V indicating decreasing potential for abuse or addiction <the Drug Enforcement Administration classifies heroin as a schedule I drug while the tranquilizer chlordiazepoxide is on schedule IV>