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How to pronounce "acetylcholinesterase" in English

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

a·ce·tyl·cho·li·ne·ste·rase

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Hear native speakers say acetylcholinesterase in context across real video clips

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Syllablesa · ce · tyl · cho · li · ne · ste · rase
Hear it in contextUS
23:06
Keyboard controls: ← Prev, → Next, R Replay • Press L to loop sentence • Space to pause/resume

Linguistic Pronunciation Masterclass: “acetylcholinesterase”

Phonetic mechanics, syllable architecture, and conversational cadence

Syllable Architecture & Stress Distribution

Syl. 1Unstressed

a

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

Syl. 2Unstressed

ce

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

Syl. 3Unstressed

tyl

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

Syl. 4Unstressed

cho

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

Syl. 5Unstressed

li

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

Syl. 6Unstressed

ne

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

Syl. 7Unstressed

ste

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

Syl. 8Unstressed

rase

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 "acetylcholinesterase" aligns naturally with adjacent words.

Authentic Spoken Quotes from Native Video Context

Verified Transcripts
“Then when I spritz acetylcholine it gets to the other side, but very rapidly the acetylcholinesterase is degrading it.”
— MIT OpenCourseWareWatch clip
“Today, there are two types of drugs used for treating Alzheimer’s specifically: acetylcholinesterase inhibitors and an NMDA antagonist.”
— SciShowWatch clip
“acetylcholinesterase enzymes they're normally in our muscle cell synapse and what happens is acetylcholinesterases are constantly breaking down this”
— Ninja NerdWatch clip
“Weak acetylcholinesterase inhibitors, especially natural ones, potentially have a part as well.”
— Andrew HubermanWatch clip
“So, acetylcholinesterase is very important.”
— MIT OpenCourseWareWatch clip
“When your brain tells the muscles to stop contracting, the acetylcholine has to be removed, this is done with Acetylcholinesterase an enzyme that breaks down the acetylcholine into its constituent parts”
— SciShowWatch clip
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Practice Speaking “acetylcholinesterase”

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Then when I spritz acetylcholine it gets to the other side, but very rapidly the acetylcholinesterase is degrading it.

Hear it in context: “acetylcholinesterase”

14 clips

The English word “acetylcholinesterase”. Phonologically, it consists of 8 syllables (a · ce · tyl · cho · li · ne · ste · rase). Grammatically, “acetylcholinesterase” functions as a noun. SayItVid indexes 14 authentic English video clips demonstrating how native speakers articulate “acetylcholinesterase” in natural connected speech across American (US: 8 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from MIT OpenCourseWare, SciShow, Ninja Nerd.

Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)

  • 🇺🇸 USMIT OpenCourseWare
    Clip #1 · @23:06
    “ACHE, acetylcholinesterase in the synaptic cleft. Then when I spritz acetylcholine it gets to the other side, but very rapidly the acetylcholinesterase is degrading it. but very rapidly the acetylcholinesterase is degrading it.”
  • 🇺🇸 USSciShow
    Clip #2 · @4:27
    “it -- we at least have some treatment options on the market right now that can slow its progression. Today, there are two types of drugs used for treating Alzheimer’s specifically: acetylcholinesterase inhibitors and an NMDA antagonist. inhibitors and an NMDA antagonist.”
  • 🇺🇸 USNinja Nerd
    Clip #3 · @21:15
    “to prevent that from happening so how do we do that we have these acetylcholinesterase enzymes they're normally in our muscle cell synapse and what happens is acetylcholinesterases are constantly breaking down this what happens is acetylcholinesterases are constantly breaking down this”
  • 🇺🇸 USAndrew Huberman
    Clip #4 · @118:11
    “phosphatidylcholine. Weak acetylcholinesterase inhibitors, especially natural ones, potentially have a part as well. especially natural ones, potentially”
  • 🇺🇸 USMIT OpenCourseWare
    Clip #5 · @23:37
    “that's how I run a neuromuscular junction. OK? So, acetylcholinesterase is very important. Now, again, as with many of the things I've talked about, again, as with many of the things I've talked about,”

Definition & Meaning: “acetylcholinesterase”

NOUN
  • An enzyme that catalyzes the hydrolysis of the neurotransmitter acetylcholine into choline and acetic acid.

Example Sentences (2)

  • “Then when I spritz acetylcholine it gets to the other side, but very rapidly the acetylcholinesterase is degrading it.”
  • “Today, there are two types of drugs used for treating Alzheimer’s specifically: acetylcholinesterase inhibitors and an NMDA antagonist.”

Common Phrases & Collocations

acetylcholinesterase inhibitorsache acetylcholinesterasespecifically acetylcholinesteraseacetylcholinesterase enzymesenzyme acetylcholinesteraseacetylcholinesterase ache

Pronounce: “acetylcholinesterase”

Syllables:
a · ce · tyl · cho · li · ne · ste · rase
Hear it in context
acetylcholinesterase

Words that Sound Identical (Homophones)

Unique Sound
Explore 800+ homophone pairs

"acetylcholinesterase" 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, "acetylcholinesterase" has a completely distinct phonetic identity.

Frequently asked questions about acetylcholinesterase

How many syllables are in “acetylcholinesterase”?

“acetylcholinesterase” has 8 syllables: a · ce · tyl · cho · li · ne · ste · rase.

What does “acetylcholinesterase” mean?

An enzyme that catalyzes the hydrolysis of the neurotransmitter acetylcholine into choline and acetic acid.

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

This page has 14 real-world video examples of “acetylcholinesterase” 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 “acetylcholinesterase”?

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⁄).