burning glass

Questions

What does burning glass mean?

A large convex lens or concave mirror that can concentrate the sun's rays onto a small area, heating up the area and thus resulting in ignition of the exposed surface.

How to pronounce burning glass

1. Open the pronunciation page — Open the Speakur entry for “burning glass”.
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 “burning glass”.
4. Repeat and practice — Say “burning glass” aloud, matching stress and vowels until it feels natural.