IPA: /ˌrɛtrəʊˈvaɪərəl/
KK: /ˈrɛtroʊˌvaɪrəl/
Relating to a type of virus that can insert its genetic material into the DNA of a host cell.
The retroviral therapy was effective in treating the patient's condition.
Retroviral → It is formed from "retro-" (meaning backward) and "virus" (from Latin "virus", meaning poison or slimy liquid). The term refers to viruses that replicate in a backward manner, specifically by transcribing their RNA into DNA.
Think of 'retro-' meaning 'backward' and 'virus' meaning 'poison' — this helps you remember that retroviral refers to viruses that work in a backward way.