3 syllables: A, mi, no. Stress on mi.
uh-MEE-noh
/əˈminoʊ/
Amino is pronounced uh-MEE-noh (/əˈminoʊ/). It has three syllables (A-mi-no), with the stress on "mi". Amino is a noun referring to an amino acid unit in biology or to the prefix of amino- in chemistry, often used in discussions of proteins or biological molecules. It denotes a basic building block that contains an amino group (-NH2) and a carboxyl group (-COOH). In common usage, it appears in scientific contexts, textbooks, and lab notes rather than casual speech.
nounAmino is a noun referring to an amino acid unit in biology or to the prefix of amino- in chemistry, often used in discussions of proteins or biological molecules. It denotes a basic building block that contains an amino group (-NH2) and a carboxyl group (-COOH). In common usage, it appears in scientific contexts, textbooks, and lab notes rather than casual speech.
"The amino acid lysine is essential for protein synthesis."
"Researchers studied how amino sequences influence protein folding."
"She took notes on the amino group's behavior under different pH levels."
Pronounce it as a-MEE-noh with the primary stress on the second syllable. IPA US: ˌæˈmiːnoʊ, UK/AU often /ˌæˈmiːnə/ in fast speech; ensure the /n/ is clear before the final schwa or /oʊ/ depending on accent. Start with /æ/ as in 'cat', then /m/ with a light, quick transition to /iː/ (long ee), followed by /n/ and a final /oʊ/ (US) or /nə/ (UK/AU). Audio reference: imagine a steady rise on the second syllable.
Common errors: 1) Misplacing stress, saying a-MI-no instead of a-MI-no; 2) Reducing the second syllable to a short /ɪ/ or /ə/; 3) Blurring the final consonant cluster, turning /noʊ/ into /no/ or /nəʊ/. Correction: place emphasis on the second syllable with a clear long /iː/ and finalize with a crisp /noʊ/ (US) or /nə/ (UK/AU). Practice by isolating the middle long vowel and confirming you don’t swallow the /m/ or the /n/.
In US, you’ll hear a two-note rise: /ˌæˈmiːnoʊ/ with a distinct long /iː/ and rhotic final /oʊ/. UK/AU often reduce the final to /nə/ or /noʊ/ depending on tempo, with less prominent rhoticity; sometimes the final vowel sounds are shorter, /ˌæˈmiːnə/. Dialectal variations may also shift the middle vowel quality slightly but the stress pattern remains on the second syllable.
Difficulties center on the two-syllable rhythm with a long mid-vowel /iː/ and the final /oʊ/ or /ə/. The transition from /m/ to /iː/ can slow you if you overarticulate, and the final sonorant consonant cluster requires keeping the mouth position stable without truncating the final vowel. Practicing the exact vowel length and the closed syllable /noʊ/ helps maintain natural streaming in sentences.
Amino has no silent letters, but the main feature is the stressed second syllable with a long vowel /iː/. It’s not evenly stressed across all contexts, and in rapid speech some speakers tilt toward /ˌæmɪˈno/ or /ˌæˈmiːnə/. The unique aspect for SEO is the fact that the final vowel in some dialects softens to a schwa; knowing both /noʊ/ and /nə/ helps you answer audience queries accurately.
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Amino comes from the combination of amino, from amino- meaning nitrogen-containing (Greek aminos, 'nitrogen') and suffix -o from the chemical naming tradition, with roots tied to amino groups in organic chemistry. The term entered scientific vocabulary to describe compounds containing an amino group in organic molecules, especially amino acids, which themselves were identified in the 19th century as vital building blocks of proteins. The word’s origin reflects a shorthand for “amino compound” and later became specifically associated with amino acids and related biomolecules. Over time, as biochemistry matured, amino acids emerged as the canonical units of protein structure; the terminology was reinforced by the discovery of essential vs non-essential amino acids and the central dogma of molecular biology, elevating “amino” to a standard descriptor in biochemistry, physiology, and nutrition literature. First widely used in scientific texts in the late 19th to early 20th centuries, it cemented its place in modern biology and pharmacology as a common prefix and standalone noun in educational contexts.
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💡 These words have similar meanings to "Amino" and can often be used interchangeably.
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Words that rhyme with "Amino"
-mio sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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