cucurbitaceous /kjuːkɜːbɪˈteɪʃəs/ adjective1 •Pertaining to the gourd family, including cucumbers, pumpkins etc.On he goes, gabbing, gabbing, recipes for preparing beets in a hundred tasty ways, or such cucurbitaceous improbabilities as Ernest Pudding’s Gourd Surprise — 1973 formsmore cucurbitaceous · most cucurbitaceous