英語で「hemiacetal」はどう発音する？
he·mi·a·ce·tal
実際の動画クリップの中でネイティブが文脈に合わせて「hemiacetal」を発音するのを聴く
Linguistic Pronunciation Masterclass: “hemiacetal”
Phonetic mechanics, syllable architecture, and conversational cadence
Syllable Architecture & Stress Distribution
he
Reduced vowel sound, relaxed jaw, and minimal vocal effort.
mi
Reduced vowel sound, relaxed jaw, and minimal vocal effort.
a
Reduced vowel sound, relaxed jaw, and minimal vocal effort.
ce
Reduced vowel sound, relaxed jaw, and minimal vocal effort.
tal
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: 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
When "hemiacetal" is followed by a word starting with a vowel, glide the final consonant into the opening vowel (e.g. "hemiacetal is" sounds like "hemiacetal-iz").
Maintain the stress-timed rhythm of English: compress unstressed syllables rapidly so the beat of "hemiacetal" aligns naturally with adjacent words.
Authentic Spoken Quotes from Native Video Context
“So the hemiacetal here, treat it with acid, protonate, lose that, and you've got the ketone now.”— YaleCoursesWatch clip
“There in the hemiacetal, the carboxylate's not there yet.”— MIT OpenCourseWareWatch clip
“The sugar world actually has lots of special vocabulary: the hemiacetal carbon of a sugar is called the anomeric carbon.”— Native SpeakerWatch clip
“H from the six carbon and I'm going to fuse that with the O hiv-1 carbon I'm gonna get them I haven't hemiacetal to an alcohol reaction so I'm going to get”— Ninja NerdWatch clip
“A stable five-membered ribose ring forms when the D- or L-determining hydroxyl group forms a hemiacetal with the aldehyde at carbon 1.”— Native SpeakerWatch clip
“Or it could be a nitrogen, and then the equivalent of a hemiacetal for nitrogen is called a carbinolamine.”— YaleCoursesWatch clip
「hemiacetal」のスピーキング練習
ネイティブの発音を聞き、マイクに向かってセンテンスを復唱すると、リアルタイムで単語ごとの発音精度スコアが表示されます。
So the hemiacetal here, treat it with acid, protonate, lose that, and you've got the ketone now.
文脈で聴く: “hemiacetal”
20 件のクリップThe 英語 word “hemiacetal”. Phonologically, it consists of 5 syllables (he · mi · a · ce · tal). Grammatically, “hemiacetal” functions as a noun. SayItVid indexes 20 authentic 英語 video clips demonstrating how native speakers articulate “hemiacetal” in natural connected speech across American (US: 8 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from YaleCourses, MIT OpenCourseWare, Ninja Nerd.
Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)
- 🇺🇸 USYaleCoursesClip #1 · @13:23
“What does it do, what does a hemiketal do? Loses alcohol. Right? So the hemiacetal here, treat it with acid, protonate, lose that, and you've got the ketone now. Right?”
- 🇺🇸 USMIT OpenCourseWareClip #2 · @6:33
“in the hydroxyl group. There in the hemiacetal, the carboxylate's not there yet. So you can't put in the active species, or they turn over.”
- 🇺🇸 USClip #3 · @4:34
“But we can get even more specific in what we call them! The sugar world actually has lots of special vocabulary: the hemiacetal carbon of a sugar is called the anomeric carbon. the hemiacetal carbon of a sugar is called the anomeric carbon.”
- 🇺🇸 USNinja NerdClip #4 · @9:08
“two three four five six now what I'm going to do is I'm going to take this o H from the six carbon and I'm going to fuse that with the O hiv-1 carbon I'm gonna get them I haven't hemiacetal to an alcohol reaction so I'm going to get gonna get them I haven't hemiacetal to an alcohol reaction so I'm going to get”
- 🇺🇸 USClip #5 · @5:14
“Our new OH group can be on either side of the Fischer Projection. A stable five-membered ribose ring forms when the D- or L-determining hydroxyl group forms a hemiacetal with the aldehyde at carbon 1. forms a hemiacetal with the aldehyde at carbon 1.”
意味と定義: “hemiacetal”
- Any of a class of compounds of general formula R₁R₂C(OH)OR' (where R' is not H and R₁ or R₂ is often hydrogen).
動画内の例文 (2)
- “Loses alcohol. Right? So the hemiacetal here, treat it with acid, protonate, lose that, and you've got the ketone now.”
- “There in the hemiacetal, the carboxylate's not there yet.”
よく使われるフレーズ・コロケーション
発音が全く同じ単語（同音異義語）
固有の発音「hemiacetal」 には一般的な語彙において同音異義語がありません。
「hemiacetal」に関するよくある質問
「hemiacetal」の音節（シラブル）数はいくつですか？
「hemiacetal」には 5 つの音節があります：he · mi · a · ce · tal。
「hemiacetal」の意味は何ですか？
Any of a class of compounds of general formula R₁R₂C(OH)OR' (where R' is not H and R₁ or R₂ is often hydrogen).
「hemiacetal」が実際に使われている文を聞くには？
このページには、字幕付きの動画例文が 20 件収録されています。「前へ / 次へ」（または矢印キー ← / →）を使って発音される瞬間をピンポイントで再生できます。
What is the most common pronunciation mistake when saying “hemiacetal”?
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].