چگونه «ninhydrin» را در انگلیسی تلفظ کنیم
nin·hy·drin
به افراد بومی گوش دهید که «ninhydrin» را در متن ویدیوهای واقعی می‌گویند
Linguistic Pronunciation Masterclass: “ninhydrin”
Phonetic mechanics, syllable architecture, and conversational cadence
Syllable Architecture & Stress Distribution
nin
Reduced vowel sound, relaxed jaw, and minimal vocal effort.
hy
Reduced vowel sound, relaxed jaw, and minimal vocal effort.
drin
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
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 "ninhydrin" is followed by a word starting with a vowel, glide the final consonant into the opening vowel (e.g. "ninhydrin is" sounds like "ninhydrin-iz").
Maintain the stress-timed rhythm of English: compress unstressed syllables rapidly so the beat of "ninhydrin" aligns naturally with adjacent words.
Authentic Spoken Quotes from Native Video Context
“Ninhydrin solution on filter paper for amine indicator.”— MIT OpenCourseWareWatch clip
“If surfaces are porous or difficult to dust, investigators use chemical developers like Ninhydrin, which reacts with proteins left by fingers.”— TED-EdWatch clip
“Specifically, ninhydrin detects the amines present in the amino acids and proteins left behind by our fingerprints.”— Native SpeakerWatch clip
“turmeric, ninhydrin, Benedict's solution.”— MIT OpenCourseWareWatch clip
“This is actually an imine-forming reaction that occurs on the keto form of ninhydrin!”— Native SpeakerWatch clip
“The next few steps of this mechanism are beyond the scope of this episode, but basically, another molecule of ninhydrin reacts, and the two molecules link up through the nitrogen atom.”— Native SpeakerWatch clip
تمرین تلفظ «ninhydrin»
به تلفظ گوینده بومی گوش دهید، جمله را در میکروفون تکرار کنید و امتیاز دقت لحظه‌ای دریافت نمایید.
Ninhydrin solution on filter paper for amine indicator.
شنیدن در متن: “ninhydrin”
۸ ویدیوThe انگلیسی word “ninhydrin”. Phonologically, it consists of 3 syllables (nin · hy · drin). Grammatically, “ninhydrin” functions as a noun. SayItVid indexes ۸ authentic انگلیسی video clips demonstrating how native speakers articulate “ninhydrin” in natural connected speech across American (US: 8 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from MIT OpenCourseWare, TED-Ed.
Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)
- 🇺🇸 USMIT OpenCourseWareClip #1 · @2:31
“It turns from yellow to red in the presence of a strong base. Ninhydrin solution on filter paper for amine indicator. In the presence of amines, color changes from pink to a dark purple upon heating”
- 🇺🇸 USTED-EdClip #2 · @2:51
“which sticks to the water and oil trail. If surfaces are porous or difficult to dust, investigators use chemical developers like Ninhydrin, which reacts with proteins left by fingers. investigators use chemical developers like Ninhydrin,”
- 🇺🇸 USClip #3 · @10:13
“which is used in chromatography to identify amino acids and forensics to view fingerprints. Specifically, ninhydrin detects the amines present in the amino acids and proteins left behind by our fingerprints. When it reacts with amino acids, a deep blue-purple color appears, called Ruhemann’s purple.”
- 🇺🇸 USMIT OpenCourseWareClip #4 · @3:16
“heating on a hot plate. Here are final results using turmeric, ninhydrin, Benedict's solution.”
- 🇺🇸 USClip #5 · @10:26
“When it reacts with amino acids, a deep blue-purple color appears, called Ruhemann’s purple. This is actually an imine-forming reaction that occurs on the keto form of ninhydrin! And the mechanism is fairly straightforward.”
تعریف و معنی: “ninhydrin”
- The aromatic compound 2,2-dihydroxyindane-1,3-dione which is used as a reagent to detect amines
جملات نمونه در بافت متن (2)
- “Ninhydrin solution on filter paper for amine indicator.”
- “If surfaces are porous or difficult to dust, investigators use chemical developers like Ninhydrin, which reacts with proteins left by fingers.”
عبارت‌ها و اصطلاحات رایج
تلفظ: “ninhydrin”
- هجاها:
- nin · hy · drin
- شنیدن در متن
- ninhydrin
کلمات با صدای یکسان (هم‌آواها)
صدای منحصربهفردهیچ هم‌آوای مستقیمی برای "ninhydrin" در واژگان عمومی ثبت نشده است.
سوالات متداول درباره «ninhydrin»
واژه «ninhydrin» چند بخش (هجا) دارد؟
واژه «ninhydrin» دارای 3 هجا است: nin · hy · drin.
معنی واژه «ninhydrin» چیست؟
The aromatic compound 2,2-dihydroxyindane-1,3-dione which is used as a reagent to detect amines
چگونه می‌توانم واژه «ninhydrin» را در جملات واقعی بشنوم؟
این صفحه شامل 8 نمونه ویدیویی واقعی از «ninhydrin» به همراه زیرنویس هماهنگ است. با استفاده از دکمه‌های قبلی / بعدی (یا کلیدهای ← / →) دقیقا در لحظه بیان آن گوش دهید.
What is the most common pronunciation mistake when saying “ninhydrin”?
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⁄).