Speakur

Word Pronunciation & Dictionary

actinium

/ækˈtɪniəm/

Word Rarity Very rare

Frequency: 1.64 in modern English

Syllables
ac-tini-um
IPA
/ækˈtɪniəm/
12
Scrabble Score
8
Letters
3
Syllables
7
Unique Chars

Meaning

noun

A radioactive, metallic chemical element (symbol: Ac) with an atomic number of 89; found in uranium ores.

Uncountable

noun

A radioactive, metallic chemical element (symbol: Ac) with an atomic number of 89; found in uranium ores.

Countable

Etymology

Borrowed from French actinium. actin- + -ium.

Origin

Word Breakdown

Usage

Inflected Forms

actiniums (plural)

Derived Forms

actinate actinide actiniferous protactinium radioactinium

Phrases

actinium A actinium B actinium C actinium emanation actinium fluoride actinium-K actinium series eka-actinium

Frequently Paired Words

actinism actino- actinoid actinon

Synonyms

ac atomic number 89

Questions

How do you pronounce actinium?
The recorded pronunciation is /ækˈtɪniəm/.
What does actinium mean?
A radioactive, metallic chemical element (symbol: Ac) with an atomic number of 89; found in uranium ores.
Where does actinium come from?
It is traced to French.

How to pronounce actinium

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