atomic number 14

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a tetravalent nonmetallic element;
next to oxygen it is the most abundant element in the earth's crust;
occurs in clay and feldspar and granite and quartz and sand;
used as a semiconductor in transistors
• Syn:
silicon, Si
• Hypernyms:
chemical element, element, semiconductor, semiconducting material
• Substance Holonyms:
silicone, silicone polymer, clay, feldspar, felspar,
granite, quartz, sand