silicon dioxide

Questions

What does silicon dioxide mean?

A hard glassy mineral, SiO₂, occurring as quartz, sand, opal etc. Informally known as silica.

How to pronounce silicon dioxide

1. Open the pronunciation page — Open the Speakur entry for “silicon dioxide”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “silicon dioxide”.
4. Repeat and practice — Say “silicon dioxide” aloud, matching stress and vowels until it feels natural.