regolith
pronunciation
How to pronounce regolith in British English:
UK ['regəlɪθ]
How to pronounce regolith in American English:
US ['regəˌlɪθ]
Word Origin
- regolith (n.)
- 1897, from Greek rhegos "rug, blanket," from PIE *reg- (3) "to dye" (see raga) + lithos "stone" (see litho-).
Example
- 1. The results for the first wet chemistry test suggested that the martian regolith contained several soluble minerals necessary for life , including potassium , magnesium and chloride .
- 2. Last week , nasa and other agencies announced results from instruments aboard three different spacecraft which all indicate that there is water present in the surface soil , or regolith , of the moon .
- 3. The lunar soil ( regolith ) contains iron , aluminum , calcium , silicon , titanium , and oxygen , as well as trace amounts of lighter elements such as carbon , sulfur , and nitrogen .
- 4. Agglutinates formed when micrometeorites hit the lunar surface and melted a bit of the powdery regolith . Tiny intact grains of soil were preserved within , like insects in amber .
- 5. Deimos has a smooth surface due to a blanket of fragmental rock or regolith , except for the most recent impact craters .