any of several Australian sterculiaceous trees of the genus Sterculia (or Brachychiton) that have a bottle-shaped swollen trunk
2. another name for baobab
bottle tree in American English
noun
any of several trees of the genus Brachychiton, native to Australia, characterized by a bottle-shaped swelling of the trunk, as B. rupestris (narrow-leaved bottle tree) or B. australis (broad-leaved bottle tree)
Word origin
[1840–50]This word is first recorded in the period 1840–50. Other words that entered Englishat around the same time include: layout, organizer, pylon, set piece, striation