non-nucleoside
/nɒnˈnjuːklɪə(ʊ)ˌsʌɪd/Biochemistry and Pharmacology
adjective
That is not a nucleoside; specifically designating drugs that inhibit retroviral reverse transcriptase but are not nucleoside analogues, used in the treatment of HIV infection.
noun
A non-nucleoside reverse transcriptase inhibitor.
Origin
1980s; earliest use found in Molecular & Cellular Biochemistry. From non- + nucleoside.