expandableswelling
nounUK /ɪkˈspændəbəl ˈswɛlɪŋ/
US /ɪkˈspændəbəl ˈswɛlɪŋ/
A house that can get bigger when you need more room.
The expandable swelling let the family add a new bedroom without moving.
OTHER MEANINGS
2. A swelling that can stretch or grow larger.
The doctor watched the expandable swelling on the patient's arm.
3. A temporary building that can be made bigger by adding sections.
Workers set up an expandable swelling as a field office.
4. A house designed with parts that can be unfolded or added later.
Their expandable swelling started small but now has three rooms.