to go down; to get off or out of a vehicle; to leave a stage or field; to go towards a place (often southwards or towards the grassroots)

(bound form) A substance made by mixing ingredients for a specific medical or chemical effect, such as a lotion, catalyst, or disinfectant; often found in words like 药剂 yào​jì

lower in rank, quality, or grade

(literary) A certain amount, portion, or limit