Nouns denoting natural objects (not man-made)

Sacramento Mountains
mountain range in New Mexico to the east of the Rio Grande
 
magnetic dipole
a dipole with opposing magnetic poles
 
Arafura Sea
a part of the western Pacific Ocean to the north of Australia and to the south of New Guinea and the eastern islands of Indonesia
 
leak
an accidental hole that allows something (fluid or light etc.) to enter or escape
 
transmitter
any agent (person or animal or microorganism) that carries and transmits a disease
 
Centaurus
a conspicuous constellation in the southern hemisphere near the Southern Cross
 
inside track
the inner side of a curved racecourse
 
shallow
a stretch of shallow water
 
Fountain of Youth
a fountain described in folk tales as able to make people young again
 
Tigris River
an Asian river; a tributary of the Euphrates River
 
Gulf of Saint Lawrence
an arm of the northwest Atlantic Ocean off the southeastern coast of Canada
 
shell
the exterior covering of a bird's egg
 
Cape York Peninsula
a peninsula in Queensland in northeastern Australia between the Gulf of Carpentaria and the Coral Sea
 
mountain peak
the summit of a mountain
 
belay
something to which a mountain climber's rope can be secured
 
Pavo
a small constellation near the South Pole between Tucana and Ara
 
liposomal delivery vector
a transducing vector that uses liposomes to carry the gene of interest
 
Don River
a European river in southwestern Russia; flows into the Sea of Azov
 
tent
a web that resembles a tent or carpet
 
head
a rounded compact mass
 
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