[A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight 28.09. ( MSH )]
UMLS (CSP) C0037107 - Biologically Active Substance
- Element, Ion, or Isotope
Relation/PAR: Element
silicon compound