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How to pronounce "diffusivity" in English

diffusivity is pronounced with standard English phonetics. Hear authentic native speakers pronounce it in 329 clips with synchronized subtitles and timestamps below.

dif·fu·si·vi·ty

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Hear native speakers say diffusivity in context across real video clips

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Syllablesdif · fu · si · vi · ty
Hear it in contextUS
40:14

should be familiar with now, if you've done your homework, is that the diffusivity is the unperturbed diffusivity times something in parentheses, where it depends on F sub i. something in parentheses, where it depends on F sub i.

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Linguistic Pronunciation Masterclass: “diffusivity”

Phonetic mechanics, syllable architecture, and conversational cadence

Syllable Architecture & Stress Distribution

Syl. 1Unstressed

dif

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

Syl. 2Unstressed

fu

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

Syl. 3Unstressed

si

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

Syl. 4Unstressed

vi

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

Syl. 5Unstressed

ty

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

⚠️ Intervocalic Tap / Flap [ɾ] in American English

The Trap: Pronouncing a hard, aspirated [tʰ] in casual conversation can sound overly formal in North America.

How Native Speakers Say It: In American English, a single "t" between vowels quickly taps against the alveolar ridge like a soft "d" ([ɾ]). In British English, maintain a crisp aspirated [tʰ].

Connected Speech & Natural Conversational Flow

🔗 Consonant-Vowel Linking (Liaison)

When "diffusivity" is followed by a word starting with a vowel, glide the final consonant into the opening vowel (e.g. "diffusivity is" sounds like "diffusivity-iz").

⏱️ Stress-Timed Rhythm

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

📐 Morphological Stress Rule (-ity)

Shifts primary stress to the antepenultimate syllable (two syllables back).

Authentic Spoken Quotes from Native Video Context

Verified Transcripts
“is that the diffusivity is the unperturbed diffusivity times something in parentheses, where it depends on F sub i.”
— MIT OpenCourseWareWatch clip
“diffusivity of hydrogen through the material so the permeabilities in the end and this is just a comparison”
— StanfordWatch clip
“in diffusivity of the annion and the gradient.”
— Harvard UniversityWatch clip
“The axial diffusivity decreases as the brain goes from being a baby to being an adult.”
— Andrew HubermanWatch clip
“the diffusivity-- the ordinary diffusivity at 700, or maybe even 400 times the diffusivity at 1, 000.”
— MIT OpenCourseWareWatch clip
“diffusivity you put a droplet of ink and the ink starts to spread out so this is diffusion and eventually you have another you have reactant and products”
— Harvard UniversityWatch clip
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Practice Speaking “diffusivity”

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is that the diffusivity is the unperturbed diffusivity times something in parentheses, where it depends on F sub i.

Hear it in context: “diffusivity”

329 clips

The English word “diffusivity”. Phonologically, it consists of 5 syllables (dif · fu · si · vi · ty). Grammatically, “diffusivity” functions as a noun. SayItVid indexes 329 authentic English video clips demonstrating how native speakers articulate “diffusivity” in natural connected speech across American (US: 8 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from MIT OpenCourseWare, Stanford, Harvard University.

Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)

  • 🇺🇸 USMIT OpenCourseWare
    Clip #1 · @40:14
    “should be familiar with now, if you've done your homework, is that the diffusivity is the unperturbed diffusivity times something in parentheses, where it depends on F sub i. something in parentheses, where it depends on F sub i.”
  • 🇺🇸 USStanford
    Clip #2 · @37:00
    “idea of what kind of compositions you would like to maximize you know the diffusivity of hydrogen through the material so the permeabilities in the end and this is just a comparison so the permeabilities in the end and this is just a comparison”
  • 🇺🇸 USHarvard University
    Clip #3 · @66:29
    “difference in zeta potential of the particle versus the wall the difference in diffusivity of the annion and the gradient. uh and notice that there is no mass uh and so it only depends on ion”
  • 🇺🇸 USAndrew Huberman
    Clip #4 · @85:46
    “It is something that you see in the developing brain. The axial diffusivity decreases as the brain goes from being a baby to being an adult. from being a baby to being an adult.”
  • 🇺🇸 USMIT OpenCourseWare
    Clip #5 · @26:17
    “but we're talking about maybe 20,000 times the diffusivity-- the ordinary diffusivity at 700, or maybe even 400 times the diffusivity at 1, 000. or maybe even 400 times the diffusivity at 1,000.”

Definition & Meaning: “diffusivity”

NOUN
  • A tendency to diffuse
  • a coefficient of diffusion; especially the amount of heat that passes through a given area in unit time

Example Sentences (2)

  • “is that the diffusivity is the unperturbed diffusivity times something in parentheses, where it depends on F sub i.”
  • “diffusivity of hydrogen through the material so the permeabilities in the end and this is just a comparison”

Common Phrases & Collocations

axial diffusivityunperturbed diffusivitydiffusivity decreasesordinary diffusivitythermal diffusivitydiffusivity times

Pronounce: “diffusivity”

Syllables:
dif · fu · si · vi · ty
Hear it in context
diffusivity

Words that Sound Identical (Homophones)

Unique Sound
Explore 800+ homophone pairs

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

Frequently asked questions about diffusivity

How many syllables are in “diffusivity”?

“diffusivity” has 5 syllables: dif · fu · si · vi · ty.

What does “diffusivity” mean?

A tendency to diffuse

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

This page has 329 real-world video examples of “diffusivity” 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 “diffusivity”?

Pronouncing a hard, aspirated [tʰ] in casual conversation can sound overly formal in North America. In American English, a single "t" between vowels quickly taps against the alveolar ridge like a soft "d" ([ɾ]). In British English, maintain a crisp aspirated [tʰ].