1. Designating an airship having a shape maintained only by internal gas pressure and without a supporting structure

Antonym: rigid

• priory
• Priscoan
• Priscoan aeon
• Priscoan eon
• prise
• prism
• prism spectroscope
• prismatic
• prismatically
• prismatoid
• prismoid
• prison
• prison camp
• prison cell
• prison chaplain
• prison farm
• prison guard
• prison house
• prison term
• prison-breaking
• prisonbreak
• prisoner
• prisoner of war
• prisoner of war camp
• prisoner of war censorship