Meaning of “dose” - Learner’s Dictionary

dose

noun [ C ] uk us /dəʊs/

B2 a measured amount of medicine that is taken at one time or during a period of time:

What is the recommended dose?
a lethal dose
a dose of sth

B2 an amount of something, often something unpleasant:

a dose of bad news
dose verb [ T ]

to give someone a drug or medicine

(Definition of “dose” from the Cambridge Learner’s Dictionary © Cambridge University Press)