What does silex mean?
Silex is an uncommon noun for flint, chert, or another hard, silica-rich stone. It is especially likely to appear in geology, archaeology, mineralogy, and historical discussions of tools, weapons, or rock formations. The word can also denote silica or quartz in more specialized contexts, but its meaning varies somewhat according to the field and historical usage. Unlike flint, which is widely understood and used in everyday speech, silex has a formal, technical character and may sound literary or historical. Its principal interest lies in its connection with early human technology: sharp fragments of silex could be fashioned into cutting tools and were important in the development of stone implements. Silex is also etymologically significant, deriving from a Latin term associated with flint and silica and helping explain the English words silica and silicate.
Flint, chert, or another hard, silica-rich stone.
"The workshop floor was littered with chips of silex from the newly made blades."
A formal or technical term; in archaeological contexts it often refers to flint used for tools or weapons.
Silica or quartz, especially when discussed as a geological or mineralogical substance.
"Veins of silex run through the limestone."
This sense is specialized and its application varies by context.
The plural is possible but uncommon, as the word is normally used in mass contexts or with numerical modifiers.
"The samples included several distinct silexes from the same geological layer."
Silex gave its name to silica: both trace back to the Latin word for flint, one of the hardest stones ancient toolmakers could use.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does silex come from?
The English word silex comes from Latin silex, meaning flint or a similar hard stone. Latin silex is also the source or ultimate root of the family represented in English by silica, silicate, and siliceous. The English form has been used since the early modern period in mineralogical and scholarly writing, while flint became the more familiar ordinary term.
How silex is actually used
Silex is chiefly a technical, geological, archaeological, or historical term. In ordinary modern English, flint is more familiar and usually clearer.
Easily confused with silex
Silica specifically denotes silicon dioxide and its various mineral and industrial forms, whereas silex is a broader geological term that can refer to flint, chert, or silica-rich stone.