1. One of certain narrow, crooked valleys seen, by aid of the telescope, on the surface of the moon

Derived forms: rilles

Encyclopedia: Rille

• blue-eyed African daisy
• blue-eyed boy
• blue-eyed grass
• blue-eyed Mary
• blue-flowered
• blue-fruited
• blue-gray
• blue-green
• blue-green algae
• blue-grey
• blue-headed vireo
• blue-lilac
• blue-pencil
• blue-purple
• blue-ribbon
• blue-rinse
• blue-sky
• blue-violet
• blue-white
• blue-winged teal
• blueback salmon
• Bluebeard
• bluebell
• blueberry
• chip shot