SG Heritage Dictionary

Quicksand [Noun] Webster's Dictionary 1828

1. Sand easily moved or readily yielding to pressure, loose sand abounding with water.

2. Unsolid ground.

Quicksand [Noun] Webster's Dictionary 1913

Sand easily moved or readily yielding to pressure; especially, a deep mass of loose or moving sand mixed with water, sometimes found at the mouth of a river or along some coasts, and very dangerous, from the difficulty of extricating a person who begins sinking into it.