Nouns denoting natural objects (not man-made)

geological formation
(geology) the geological features of the earth
 
WIMP
a hypothetical subatomic particle of large mass that interacts weakly with ordinary matter through gravitation; postulated as a constituent of the dark matter of the universe
 
fallow
cultivated land that is not seeded for one or more growing seasons
 
scraping
(usually plural) a fragment scraped off of something and collected
 
North America
a continent (the third largest) in the western hemisphere connected to South America by the Isthmus of Panama
 
Gulf of Ob
an inlet of the Kara Sea in western Siberia
 
Cuquenan Falls
a famous waterfall in Venezuela
 
magnetic monopole
a hypothetical particle with a single magnetic pole instead of the usual two
 
blanket
anything that covers
 
ice mass
a large mass of ice
 
Ophiuchus
a large constellation in the equatorial region between Hercules and Scorpius
 
cloud
a visible mass of water or ice particles suspended at a considerable altitude
 
Elizabeth River
a short river in southeastern Virginia flowing between Norfolk and Portsmouth into Hampton Roads
 
Lake Kivu
a lake in the mountains of central Africa between Congo and Rwanda
 
Osage River
a river in Missouri that is a tributary of the Missouri River
 
Tasman Sea
an arm of the southern Pacific Ocean between southeastern Australia and New Zealand
 
cirrus cloud
a wispy white cloud (usually of fine ice crystals) at a high altitude (4 to 8 miles)
 
fire pit
a pit whose floor is incandescent lava
 
Phobos
the larger of the two satellites of Mars
 
pallasite
a meteorite composed principally of olivine and metallic iron
 
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