HyperDic: atomic_number_14

English > 1 sense of the expression atomic number 14:
NOUNsubstanceatomic number 14, silicon, Sia tetravalent nonmetallic element
English > atomic number 14: 1 sense > noun 1, substance
MeaningA 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.
Synonymssilicon, Si
Broaderchemical element, elementAny of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
semiconductor, semiconducting materialA substance as germanium or silicon whose electrical conductivity is intermediate between that of a metal and an insulator
Substance ofclayA very fine-grained soil that is plastic when moist but hard when fired
feldspar, felsparAny of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium
graniteplutonic igneous rock having visibly crystalline texture
quartzA hard glossy mineral consisting of silicon dioxide in crystal form
sandA loose material consisting of grains of rock or coral
silicone, silicone polymerAny of a large class of siloxanes that are unusually stable over a wide range of temperatures
Spanishnúmero atómico 14, silicio, Si
Catalannúmero atòmic 14, silici, Si

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