What does silicic mean?
Silicic is an adjective used chiefly in chemistry and geology to indicate a relationship with silica, silicic acid, or silica-rich materials. The best-known fixed expression is “silicic acid,” a compound of silicon, oxygen, and hydrogen whose acidic solutions are associated with the formation of silica. In geological descriptions, silicic can characterize minerals, rocks, or volcanic materials containing substantial silica, distinguishing them from more basic or silica-poor substances. The word is specialized rather than everyday, but it is useful when discussing mineral chemistry, ceramics, glassmaking, volcanic geology, and the behavior of silicate compounds. Its connection with silica also makes it related in origin and meaning to terms such as silicate, silicon, and siliceous, although these words have distinct technical roles and should not be treated as interchangeable in every context.
adjectiveRelating to silica, silicic acid, or materials containing a high proportion of silica. In geology, the term may describe rocks or volcanic materials that are rich in silicon dioxide.
- Relating to silica or silicic acid.
- Of or relating to silica-rich rocks, minerals, or volcanic materials.
"The mineral was identified as a silicic compound with a high silica content."
"Silicic acid is used in the manufacture of heat-resistant glass and ceramics."
"The samples contain silicic minerals characteristic of the region's volcanic geology."
Silicic acid may sound like a minor laboratory compound, but it describes the silica-rich chemistry found in volcanic glass and many familiar minerals.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does silicic come from?
Silicic derives through French from Latin silicicus, a form associated with silex, meaning “flint” or “silica,” and its genitive silicis. The same Latin root underlies silica, silicon, silicate, and siliceous. Its development was closely connected with the early scientific study of minerals and the identification of silicon as a distinct chemical element.
How silicic is actually used
This is primarily a technical term in chemistry, geology, and related applied sciences. It is not normally used in general conversation, and its sense may depend on whether it refers specifically to silicic acid or more broadly to silica-rich material.
Easily confused with silicic
Silicic is chiefly a chemical or geological adjective relating to silica or silicic acid, whereas siliceous more often describes a material as containing silica or resembling flint.