Word Pronunciation & Dictionary

luminal

/lˈumənəl/

Word Rarity Very rare

Frequency: Zipf frequency 2.22 in modern English

Syllables
lu-mi-nal
IPA
/lˈumənəl/
9
Scrabble Score
7
Letters
3
Syllables
6
Unique Chars

Meaning

adj

of or pertaining to the lumen

adj

of or pertaining to the nature of light

adj

light-speed; having the speed of light (usually in the void)

noun

The drug phenobarbital.

Uncountable

Etymology

From Latin lumina (“lights”) + English -al.

Usage

Derived Forms

Frequently Paired Words

Synonyms

Antonyms

Questions

How do you pronounce luminal?
The recorded pronunciation is /lˈumənəl/.
What does luminal mean?
of or pertaining to the lumen
Where does luminal come from?
From Latin lumina (“lights”) + English -al.

How to pronounce luminal

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