Nouns denoting natural objects (not man-made)

Capricornus
a faint zodiacal constellation in the southern hemisphere; between Sagittarius and Aquarius
 
Aldebaran
the brightest star in Taurus
 
Pyrenees
a chain of mountains between France and Spain
 
arroyo
a stream or brook
 
Skagerrak
a broad strait of the North Sea between Jutland and Norway
 
mouth
an opening that resembles a mouth (as of a cave or a gorge)
 
Ligurian Sea
an arm of the Mediterranean between northwest Italy and Corsica
 
peninsula
a large mass of land projecting into a body of water
 
discard
anything that is cast aside or discarded
 
Strait of Gibraltar
the strait between Spain and Africa
 
bladder stone
a calculus formed in the bladder
 
polder
low-lying land that has been reclaimed and is protected by dikes (especially in the Netherlands)
 
mantle
anything that covers
 
Long Island Sound
a sound between Long Island and Connecticut
 
rill
a small stream
 
Angel Falls
the highest waterfall; has more than one leap; flow varies seasonally
 
Vetluga River
a river in central Russia; flows generally southward into the Volga
 
crevice
a long narrow opening
 
gaseous nebula
a cluster of stars within an intricate cloud of gas and dust
 
Indus
a faint constellation in the southern hemisphere near Telescopium and Tucana
 
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