The tomato (see pronunciation) is the edible, often red, fruit of the plant Solanum lycopersicum, .. For a more comprehensive list, see List of tomato cultivars. I must admit I was a little surprised to find out that only 52% of people surveyed correctly identified the tomato as a fruit. Would you have got this one right? One respondent said: “Everyone knows tomatoes are fruit, but some of the others on the list were really tricky. I always assumed a pea was a.