bottle tree noun 9forms 1 noun9 •Any of a number of trees that have a swollen base to the trunk giving a bottle-like appearance. •Adenium obesum subsp. socotranum •Adansonia gregorii •Pachypodium lealii •Moringa •Brachychiton •Ceiba •Caricaceae •An artificial tree decorated with bottles, believed in hoodoo to entrap evil spirits. formsbottle trees