psammo-, psamm-, psamme-

A "sand" or "hour glass" that measures the trickling flow of sand. It is defined by some to mean: an "hourglass" that measures a period of time other than an hour.

The sand glass was one of the earliest methods by which man measured time. The invention of the hourglass is credited to a monk by the name of Luitprand from Chartres, France; sometime around the turn of 8th century.

Charlemagne is said to have had one that was so large that it had to be turned just once every twelve hours. He had divisions marked on the outside in order to measure the passage of the hours. Now, when people speak of the "sands of time passing", you should have a better idea of what is behind that statement.

1. The microscopic fauna of sand and mud.
2. Active burrowers called endopsammon or infauna literally may eat the substrate to digest the food available in the sand.

1. Organisms living on the sand.
2. Benthic microalgal communities are described as epipelic when motile, epipsammic when attached to sand grains.

Microscopic flora and fauna found on the surface of and/or attached to sand grains.

Those organisms living in, or moving between, sand.

1. A combination of clay and sand.
2. The use of clay and sand; especially, in the treatment of skin diseases.

In biology, thriving in the strandline of a sandy seashore.

A strandline plant or a sandy seashore.

The application of sand baths in the treatment of physical ailments.

A species of micaceous sandstone.

Living in sand; living interstitially between or attached to sand particles.

An obsolete term for a carcinoma that contains calcified foci resembling psammoma bodies.

Those animals associated with a sandy substratum or living within a sandy area.