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
an accidental hole that allows something (fluid or light etc.) to enter or escape
any agent (person or animal or microorganism) that carries and transmits a disease
a conspicuous constellation in the southern hemisphere near the Southern Cross
inside track
the inner side of a curved racecourse
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
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
something to which a mountain climber's rope can be secured
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
a web that resembles a tent or carpet
a rounded compact mass
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