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How to pronounce "chemiluminescence" in English

chemiluminescence is pronounced with standard English phonetics. Hear authentic native speakers pronounce it in 14 clips with synchronized subtitles and timestamps below.

che·mi·lu·mi·ne·scence

Accent:
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Hear native speakers say chemiluminescence in context across real video clips

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Syllablesche · mi · lu · mi · ne · scence
Hear it in contextUS
2:56
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Linguistic Pronunciation Masterclass: “chemiluminescence”

Phonetic mechanics, syllable architecture, and conversational cadence

Syllable Architecture & Stress Distribution

Syl. 1Unstressed

che

Reduced vowel sound, relaxed jaw, and minimal vocal effort.

Syl. 2Unstressed

mi

Reduced vowel sound, relaxed jaw, and minimal vocal effort.

Syl. 3Unstressed

lu

Reduced vowel sound, relaxed jaw, and minimal vocal effort.

Syl. 4Unstressed

mi

Reduced vowel sound, relaxed jaw, and minimal vocal effort.

Syl. 5Unstressed

ne

Reduced vowel sound, relaxed jaw, and minimal vocal effort.

Syl. 6Unstressed

scence

Reduced vowel sound, relaxed jaw, and minimal vocal effort.

Keep the vowel length balanced, placing subtle emphasis on the root morpheme according to standard conversational rhythm.

Common Pronunciation Traps & Learner Mistakes

⚠️ Unstressed Syllable Vowel Reduction (Schwa ⁄ə⁄)

The Trap: Avoid pronouncing every vowel with full acoustic weight. Non-native speakers often over-enunciate unstressed vowels.

How Native Speakers Say It: Only give full vowel clarity to the primary stressed syllable. Relax all unstressed vowels into a neutral, low-energy schwa (⁄ə⁄).

Connected Speech & Natural Conversational Flow

🔗 Consonant-Vowel Linking (Liaison)

When followed by a vowel, insert a subtle glide (/w/ or /j/) to connect into the subsequent word without an abrupt glottal stop.

⏱️ Stress-Timed Rhythm

Maintain the stress-timed rhythm of English: compress unstressed syllables rapidly so the beat of "chemiluminescence" aligns naturally with adjacent words.

Authentic Spoken Quotes from Native Video Context

Verified Transcripts
“to prevent chemiluminescence. In fact, a skilled investigator can even use these lingering patterns to identify attempts at blood removal.”
— TED-EdWatch clip
“So that is what would be called chemiluminescence, the interaction of a chemical with another chemical to give luminescence.”
— MIT OpenCourseWareWatch clip
“But not all glow in the dark things work like that Glow-sticks, for example work by 'chemiluminescence' Which means that light is emitted as a product of a chemical reaction.”
— SciShowWatch clip
“enzymatic source of the oxidative stress we focused on NADPH oxidase and as you can see from these data using a NADH and NADPH stimulated chemiluminescence assay”
— StanfordWatch clip
“It's called chemiluminescence technique.”
— Harvard UniversityWatch clip
“This process is called chemiluminescence, and Specht discovered he could trigger it by exposing luminol to hemoglobin,”
— TED-EdWatch clip
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to prevent chemiluminescence. In fact, a skilled investigator can even use these lingering patterns to identify attempts at blood removal.

Hear it in context: “chemiluminescence”

14 clips

The English word “chemiluminescence”. Phonologically, it consists of 6 syllables (che · mi · lu · mi · ne · scence). Grammatically, “chemiluminescence” functions as a noun. SayItVid indexes 14 authentic English video clips demonstrating how native speakers articulate “chemiluminescence” in natural connected speech across American (US: 8 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from TED-Ed, MIT OpenCourseWare, SciShow.

Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)

  • 🇺🇸 USTED-Ed
    Clip #1 · @2:56
    “it's almost impossible to clean a bloody crime scene well enough to prevent chemiluminescence. In fact, a skilled investigator can even use these lingering patterns to identify attempts at blood removal. In fact, a skilled investigator can even use these lingering patterns”
  • 🇺🇸 USMIT OpenCourseWare
    Clip #2 · @4:03
    “So that's the most famous luminol sort of example. So that is what would be called chemiluminescence, the interaction of a chemical with another chemical to give luminescence. the interaction of a chemical with another chemical”
  • 🇺🇸 USSciShow
    Clip #3 · @1:12
    “We say that they're 'photoluminescent' But not all glow in the dark things work like that Glow-sticks, for example work by 'chemiluminescence' Which means that light is emitted as a product of a chemical reaction. Glow-sticks, for example work by 'chemiluminescence'”
  • 🇺🇸 USStanford
    Clip #4 · @10:27
    “least locally associated with the disease pathology and investigating the enzymatic source of the oxidative stress we focused on NADPH oxidase and as you can see from these data using a NADH and NADPH stimulated chemiluminescence assay can see from these data using a NADH and NADPH stimulated chemiluminescence assay”
  • 🇺🇸 USHarvard University
    Clip #5 · @102:14
    “in a lake of Lake Michigan. It's called chemiluminescence technique. All right.”

Definition & Meaning: “chemiluminescence”

Audio
NOUN
  • The emission of light as the result of a chemical reaction.

Example Sentences (2)

  • “to prevent chemiluminescence. In fact, a skilled investigator can even use these lingering patterns to identify attempts at blood removal.”
  • “So that is what would be called chemiluminescence, the interaction of a chemical with another chemical to give luminescence.”

Common Phrases & Collocations

stimulated chemiluminescencechemiluminescence assaychemiluminescence techniqueprevent chemiluminescence

Pronounce: “chemiluminescence”

Syllables:
che · mi · lu · mi · ne · scence
Hear it in context
chemiluminescence

Words that Sound Identical (Homophones)

Unique Sound
Explore 800+ homophone pairs

"chemiluminescence" has no true homophones in standard English — there are no other words with identical pronunciation. Unlike sound-alike pairs like there / their or peace / piece, "chemiluminescence" has a completely distinct phonetic identity.

Frequently asked questions about chemiluminescence

How many syllables are in “chemiluminescence”?

“chemiluminescence” has 6 syllables: che · mi · lu · mi · ne · scence.

What does “chemiluminescence” mean?

The emission of light as the result of a chemical reaction.

How can I hear “chemiluminescence” used in real sentences?

This page has 14 real-world video examples of “chemiluminescence” with synchronized subtitles. Use Previous / Next (or ← / → keys) to hear each one at the exact moment it is spoken.

What is the most common pronunciation mistake when saying “chemiluminescence”?

Avoid pronouncing every vowel with full acoustic weight. Non-native speakers often over-enunciate unstressed vowels. Only give full vowel clarity to the primary stressed syllable. Relax all unstressed vowels into a neutral, low-energy schwa (⁄ə⁄).