balloonings

Noun

ballooning (countable and uncountable, plural balloonings)

1. The act of something that swells or expands.
   • This major artery from the heart to the lower body, the aorta, can indeed develop aneurysms. These balloonings of the shape of the normally straight artery may cause no bother, no symptoms and no complications.2013, Margaret McCartney, The Patient Paradox, page 95
2. (uncountable) The sport or hobby of flying in a hot-air balloon.
   • When he retired, he took up ballooning.
3. The mechanical kiting used by spiders, mites, caterpillars, etc. to travel through the air.

See all 5 meanings of ballooning