pentasil
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Pentasil.png/126px-Pentasil.png)
Etymology
[edit]From penta- and a shortening of silicate.
Noun
[edit]pentasil (plural pentasils)
- (inorganic chemistry) Any of a family of silicate structures composed of regular three-dimensional pentagonal arrangements of atoms