silicon

noun

sil·​i·​con ˈsi-li-kən  ˈsi-lə-ˌkän 

: a tetravalent nonmetallic element with atomic number 14 that occurs combined as the most abundant element next to oxygen in the earth's crust and is used especially in semiconductors, in ferrosilicon for steelmaking, and in other alloys

—often used before another noun

silicon chips

silicon carbide

see Chemical Elements Table

Examples of silicon in a Sentence

Recent Examples on the Web

Key to all this is whether Apple has the will, enthusiasm and love for games at the highest levels to make gaming a priority, rather than a way to show off how powerful its silicon is during a keynote. —Craig Grannell, WIRED, 4 Nov. 2024

The basket itself is sealed with a silicon gasket, ensuring that steam doesn't leak out. —Anthony Karcz, Forbes, 3 Nov. 2024

The goal of the project is to develop a prototype for high-voltage power modules that use silicon carbide, a wide bandgap semiconductor that can handle higher voltages and temperatures than silicon. —The Arkansas Democrat-Gazette, arkansasonline.com, 31 Oct. 2024

Talc—which is very effective at absorbing moisture and reducing friction rashes—is composed mainly of magnesium, silicon, and oxygen and is found in many cosmetic products for both adults and babies. —Nina Turner, Newsweek, 30 Oct. 2024

Word History

Etymology

New Latin silica + English -on (as in carbon)

First Known Use

1814, in the meaning defined above

Phrases Containing silicon

• silicon carbide
• silicon dioxide
• silicon nitride

Kids Definition

silicon

noun

sil·​i·​con ˈsil-i-kən 

ˈsil-ə-ˌkän

: a nonmetallic element that occurs combined as the most abundant element after oxygen in the earth's crust and is used especially in alloys and electronic devices see element

Medical Definition

silicon

noun

sil·​i·​con ˈsil-i-kən  ˈsil-ə-ˌkän 

: a tetravalent nonmetallic element that occurs combined as the most abundant element next to oxygen in the earth's crust and is used especially in alloys

—symbol Si see Chemical Elements Table