Siliceous is a 9 letter English word. It's valid Words with friends word worth 14 points.
You can make 248 anagrams from letters in siliceous (ceiilossu).
First recorded in 1650-60, siliceous is from the Latin word siliceus of flint or limestone. See silex, -eous
In clays also siliceous and calcareous concretions are often found.
It was manifest especially in the siliceous stratum before-mentioned.
Because of their common gangue of quartz these are often called "dry" or "siliceous" ores.
The siliceous bars and beams constituting it are invariably solid (as also in the Spumellaria); never hollow (as in the Phodaria).
They appear to have been cracks, into which siliceous matter was infiltered.
siliceous sandstones are excellent examples of this permanence.
When well ground, it can be digested, with the exception of the siliceous coating.
The siliceous bars and beams constituting it are invariably solid, as also in the Nassellaria, never hollow, as in the Phodaria.
In general, their siliceous shells are firmer and more massive, usually also somewhat larger, but of simpler structure.
A hard mineral of the siliceous family, often cut into seals.