How to pronounce "perforin" in English
ˈpɜːrfərɪn
PUR·fər·in
Primary stress: PUR
Hear native speakers say perforin in context across real video clips
Linguistic Pronunciation Masterclass: “perforin”
Phonetic mechanics, syllable architecture, and conversational cadence
Syllable Architecture & Stress Distribution
PUR
Tense long vowel with sustained acoustic resonance.
fər
Neutral schwa (⁄ə⁄): relaxed jaw, brief unstressed breath.
in
Neutral schwa (⁄ə⁄): relaxed jaw, brief unstressed breath.
Primary emphasis falls on the first syllable ("PUR"). Raise your pitch and sustain the vowel length on this syllable while relaxing the surrounding syllables.
Common Pronunciation Traps & Learner Mistakes
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
When "perforin" is followed by a word starting with a vowel, glide the final consonant into the opening vowel (e.g. "perforin is" sounds like "perforin-iz").
Maintain the stress-timed rhythm of English: compress unstressed syllables rapidly so the beat of "perforin" aligns naturally with adjacent words.
Authentic Spoken Quotes from Native Video Context
“cytotoxic because they will kill those cells they kill cells either by secreting perforin or perforin or some substance”— YaleCoursesWatch clip
“chemical high perforin high perforin prevents neurons from taking up certain neurotransmitters like serotonin norepinephrine and dopamine”— SciShowWatch clip
“intracellular pathogen of low medical relevance it produces listeriolysin a perforin which perforates the membrane”— Harvard UniversityWatch clip
“by an electron transfer process that probably occurs through the edge of the perforin system.”— MIT OpenCourseWareWatch clip
“releasing a protein called perforin which puts a hole in the target cell and then a granzyme an enzyme that then cuts the proteins inside the cell and kills”— StanfordWatch clip
“drugs and we're not even close to listing all of them researchers think that high perforin triggers the liver to make more of an enzyme that breaks down”— SciShowWatch clip
Practice Speaking “perforin”
Listen to native pronunciation, record yourself repeating the sentence into your microphone, and receive real-time word-by-word accuracy scoring.
cytotoxic because they will kill those cells they kill cells either by secreting perforin or perforin or some substance
Hear it in context: “perforin”
7 clipsThe English word “perforin” is transcribed in the International Phonetic Alphabet (IPA) as ˈpɜːrfərɪn (phonetic respelling: PUR-fər-in). Phonologically, it consists of 3 syllables (PUR · fər · in), with primary lexical stress placed on the 1st (initial) syllable (PUR). Grammatically, “perforin” functions as a noun. SayItVid indexes 7 authentic English video clips demonstrating how native speakers articulate “perforin” in natural connected speech across American (US: 7 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from YaleCourses, SciShow, Harvard University.
Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)
- 🇺🇸 USYaleCoursesClip #1 · @12:02
“look for cells that exhibit that specific antigen and they're called cytotoxic because they will kill those cells they kill cells either by secreting perforin or perforin or some substance secreting perforin or perforin or some substance”
- 🇺🇸 USSciShowClip #2 · @18:47
“for its effects on mood modern scientists think this is because of the chemical high perforin high perforin prevents neurons from taking up certain neurotransmitters like serotonin norepinephrine and dopamine taking up certain neurotransmitters like serotonin norepinephrine and dopamine”
- 🇺🇸 USHarvard UniversityClip #3 · @10:50
“that so well listeria monocytogenesis is an intracellular pathogen of low medical relevance it produces listeriolysin a perforin which perforates the membrane it produces listeriolysin a perforin which perforates the membrane”
- 🇺🇸 USMIT OpenCourseWareClip #4 · @4:36
“but somehow this reduction has to occur by an electron transfer process that probably occurs through the edge of the perforin system. probably occurs through the edge of the perforin system.”
- 🇺🇸 USStanfordClip #5 · @2:56
“kill those tumors or virus infected cells or bacterial infected cells by releasing a protein called perforin which puts a hole in the target cell and then a granzyme an enzyme that then cuts the proteins inside the cell and kills then a granzyme an enzyme that then cuts the proteins inside the cell and kills”
Definition & Meaning: “perforin”
- A cytolytic protein found in natural killer cells.
Example Sentences (2)
- “cytotoxic because they will kill those cells they kill cells either by secreting perforin or perforin or some substance”
- “chemical high perforin high perforin prevents neurons from taking up certain neurotransmitters like serotonin norepinephrine and dopamine”
Common Phrases & Collocations
Pronounce: “perforin”
- Pronunciation:
- PUR-fər-in
- Syllables:
- PUR · fər · in
- Written Hyphenation:
- per · fo · rin
- Primary stress:
- PUR
- IPA:
- ˈpɜːrfərɪn
- Hear it in context
- perforin
Words that Rhyme with “perforin”
-ɜrfərɪnWords that Sound Identical (Homophones)
Unique Sound"perforin" (⁄ˈpɜːrfərɪn⁄) 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, "perforin" has a completely distinct phonetic identity.
Frequently asked questions about perforin
How do you pronounce “perforin”?
“perforin” is pronounced ⁄ˈpɜːrfərɪn⁄ (PUR-fər-in). Listen to the native-speaker clips above to hear it in real conversation.
How many syllables are in “perforin”?
“perforin” has 3 syllables: PUR · fər · in.
Where is the stress in “perforin”?
The primary stress in “perforin” is on “PUR”. Listen for that stressed syllable in the clips above.
What does “perforin” mean?
A cytolytic protein found in natural killer cells.
How can I hear “perforin” used in real sentences?
This page has 7 real-world video examples of “perforin” 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 “perforin”?
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⁄).