silico-, silic-

A disease of the lungs caused by the inhalation of very fine silicate, or quartz dust: Pneumonoultramicroscopicsilicovolcanoconiosis occurs especially in the lungs of miners.

This is one of the longest words in the English language with 45 letters and is divided into the following segments: pneu, mono, ultra, micro, scopic, silico, volcano, coni, osis; and together they mean "miner's lung disease".

1. Flint:In order to make a fire while camping, Jack used silex to get the fire started.
2. A finely ground and somewhat pure form of silicas:Silex if often used as a paint filler.

Silicon dioxide: Silica appears in a crystalline form, like in quartz, in an amorphous form, as with an opal, and in an impure form, like sand.

A salt or ester obtained from a silicic acid: Silicate is one of many insoluble, complex metal salts containing silicon and oxygen in the anion, and used in building materials, like cement and glass.

Living in soil rich in silica or silicates, containing, resembling, relating to, or consisting of a white or colorless crystalline; such as, sand, quartz and other minerals used to manufacture glass, concrete and other materials.