receptor

mastery
UK /ɹɪˈsɛp.tə/ US /ɹɪˈsɛp.tɚ/noun

card 1 of 10 · context meaning

Which meaning of 'receptor' best matches its use in the sentence?

In the target organ, the drug is recognised by ‘receptors’. These are large molecules, usually proteins, to which the drug binds tightly.