siliceous
1
9.9
- adjective
- /sɪˈliːʃəs/
- Specialized
:
silíceo
- The geologist explained that the siliceous rock formation is rich in silica and contributes to the area's unique ecosystem.
Examples
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"Their red-blue suns will always transform our nitrogenous DNA helices into their siliceous ladder-cells, along with copious carbon monoxide.
Fiction book (1999) -
The archaeologists discovered siliceous artifacts, indicating that the ancient inhabitants used local resources for their tools.
-
Local surface is highly siliceous.
Fiction book (1999) -
Siliceous lava... ...forced up from deep down below.
-
It chewed up our DNA and used it to make this siliceous stuff.
Fiction book (1999) -
Unlike the siliceous deposit everywhere else, this material was soft and made of pure clay mixed with powdered chalk.
Academic text (2003) -
Formation of the organic buildups was by dense concentrations of sessile siliceous sponges.
Blog text (19) -
Since the Earth was almost completely covered with ice, carbon dioxide could not be withdrawn from the atmosphere by the release of alkaline metal ions weathering out of siliceous rocks.
Blog text (4) -
I peered back through two billion Martian years and saw the jewel box of the past, pressed thin as a coat of paint, opalescent against the dark strata of those siliceous oceans.
Fiction book (1993) -
Groundwater aquifers beneath wheat-belt valleys often are under pressure, being confined below siliceous hardpans or other confining weathered materials.
Academic text (1990)
Synonyms
A rock or material that contains a lot of silica, a hard mineral
Containing a lot of silica, like some rocks and volcanic magma
How Quartzose
- Specialized
- Specialized
1
9.9
- Specialized
- Specialized
Surface Forms
Morphology
Etymology
Siliceous comes from silica, which goes back to the Latin word silex meaning 'flint' or 'hard stone'. Think of sand or glass made from silica and the modern word silicon. That's why siliceous means 'containing or like silica', describing rocks or ash with hard, glassy particles.