Meaning of “antiperspirant” - Learner’s Dictionary

antiperspirant

noun [ C, U ] uk us /ˌæntiˈpɜːspərənt/ US  /ˌæntaɪ-/

a substance that prevents you from becoming wet under your arms when you are hot

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