thumb|right|Chemical structure of the prototypical limonoid limonin
thumb|right|Chemical structure of the prototypical limonoid limonin
Limonoids are phytochemicals of the triterpenoid class which are abundant in sweet or sour-scented citrus fruit and other plants of the families Cucurbitaceae, Rutaceae, and Meliaceae. Certain limonoids are antifeedants such as azadirachtin from the neem tree.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).