ultracold

Questions

What does ultracold mean?

Of a temperature close to absolute zero, especially one at which quantum-mechanical properties are observed.

Where does ultracold come from?

From ultra- + cold.

How to pronounce ultracold

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