1. Between or among stars
   "the density of hydrogen in interplanetary and interstellar space"

See also: star

Encyclopedia: Interstellar

• cathectic
• cathedra
• cathedral
• cathemeral
• Cather
• Catherine
• Catherine de Médicis
• Catherine Howard
• Catherine I
• Catherine II
• Catherine of Aragon
• Catherine Parr
• Catherine the Great
• catherine wheel
• catheter
• catheterisation
• catheterise
• catheterization
• catheterize
• cathexis
• cathode
• cathode ray
• cathode-ray oscilloscope
• cathode-ray tube
• cathodic