â¢ ACCRETION (noun) The noun ACCRETION has 6 senses: 1. an increase by natural growth or addition. 2. something contributing to growth or increase. 3. (astronomy) the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases.
The Great Basin Visitor Center is located on Nevada State Route 487 in the town of Baker. The Lehman Caves Visitor Center is located on Nevada State Route 488. It is 5.5 miles (8.9 km) from Baker, Nevada, 1â2 mile (800 m) inside the park boundary.
The Great Basin Desert is the largest desert in the US which spans  200,000 square miles or 500,000 square km.    However, the largest desert that extends into the Uni â¦ ted States is  the Chihuahuan Desert. The greater portion of that desert is  located in Mexico.