1. Of or relating to or resembling a nebula
   "the nebular hypothesis of the origin of the solar system"
   - nebulous 
2. Resembling a cloud
   - cloudlike

See also: cloudy, nebula

• catbird
• catboat
• catbrier
• catcall
• catch
• catch a glimpse
• catch a wink
• catch cold
• catch crop
• catch fire
• catch it
• catch on
• catch one's breath
• catch out
• catch sight
• catch some Z's
• catch up
• catch up with
• catch-22
• catchall
• catcher
• catcher's mask
• catchfly
• catching
• catchment