How to pronounce radium
Say it like RAY-dee-um. Radium has three syllables, and the main stress falls on the first one (RAY).
Click the play button next to American or British to hear how to pronounce radium. Choose Slow to hear each sound clearly.
- RAY
- dee
- um
- Main stress
- Lighter stress
- Unstressed
Radium pronunciation, sound by sound
Read the parts left to right, then blend them together without pausing.
- RAYSay this part loudest and longest. The vowel is the "ay" in day.
- deeKeep this part quick and light. The vowel is the "ee" in see.
- umKeep this part quick and light. The vowel is the relaxed "uh" in about.
American vs British pronunciation of radium
American and British speakers say radium in essentially the same way: /ˈreɪdiəm/ in the US and /ˈreɪdɪəm/ in the UK.
British respelling: RAY-dih-um.
What does radium mean?
- The chemical element (symbol Ra) with an atomic number of 88. It is a soft, shiny and silvery radioactive alkaline earth metal.
- An atom of this element.
- A type of cloth woven from silk or synthetic yarn, often with a shiny appearance.
Where does radium come from?
Borrowed from French radium, from rad(ioactif) (“radioactive”) + -ium (suffix used to form the names of metallic elements).
Similar and opposite words
Similar meaning
Words that rhyme with radium
Practicing rhymes is a quick way to lock in the vowel sound of radium.
Questions about saying radium
How do you pronounce radium?
Say RAY-dee-um. The American pronunciation is /ˈreɪdiəm/. In British English it is /ˈreɪdɪəm/. Press play above to hear it at normal speed or slowly.
How many syllables are in radium?
Radium has three syllables, and the main stress falls on the first one (RAY). Broken into parts: RAY · dee · um.
Do Americans and Brits say radium the same way?
Almost exactly. The American form is /ˈreɪdiəm/ and the British form is /ˈreɪdɪəm/, so you can use either pronunciation with any listener.