3 syllables: A, my, loid. Stress on A.
AM-il-oyd
/ˈæmɪˌlɔɪd/
Amyloid is pronounced AM-il-oyd (/ˈæmɪˌlɔɪd/). It has three syllables (A-my-loid), with the stress on "A". Amyloid is a misfolded protein aggregate that forms insoluble fibrils in tissues and organs, often associated with various diseases. In biology and medicine, it refers to protein deposits that can disrupt normal function, and it is studied in the context of pathology and neurodegeneration. The term is used as a noun in clinical and research settings and is pronounced with emphasis on the first syllable.
nounAmyloid is a misfolded protein aggregate that forms insoluble fibrils in tissues and organs, often associated with various diseases. In biology and medicine, it refers to protein deposits that can disrupt normal function, and it is studied in the context of pathology and neurodegeneration. The term is used as a noun in clinical and research settings and is pronounced with emphasis on the first syllable.
How to Pronounce Amyloid
"Researchers identified amyloid plaques in brain tissue from Alzheimer's patients."
"Amyloid deposition can occur in organs such as the heart or kidneys, affecting function."
"The diagnosis involved staining tissue to detect amyloid aggregates."
Amyloid is pronounced /ˈæm.ɪ.lɔɪd/. The primary stress falls on the first syllable AM-, with a short 'a' as in 'cat' and a distinct /ɪ/ in the second syllable. The final syllable is /lɔɪd/, rhyming with 'foil' but preceded by an 'l' consonant. Mouth position: start with a relaxed jaw, lips neutral for /æ/, then raise the tongue slightly for /ɪ/, and glide into /ɔɪ/ with the lips rounding minimally before finishing with /d/. You’ll hear it most often in medical contexts as AM-i-loid.
Common errors include misplacing stress (saying a-MY-loid) and mispronouncing the final diphthong as /əʊ/ or /oʊ/ instead of /ɔɪ/. Another frequent issue is tensing the final consonant into /t/ or /d/ without the proper elongation of the /ɔɪ/ glide. To correct: keep stress on AM, ensure the final syllable uses a clear /ɔɪ/ glide into /d/, and practice the transition from /ɪ/ to /ɔɪ/ with a smooth lip rounding. Practicing with minimal pairs can help—AM-i-lord (incorrect) vs AM-i-lɔɪd (correct).
In US, UK, and AU accents the word is rhotic and the final /ˈd/ is pronounced with a clear alveolar stop; the main variation is vowel timing and rhotics. US speakers often realize /æ/ slightly tenser and may have a shorter /lɔɪ/ vowel; UK speakers may reduce the /ɪ/ slightly and maintain a crisper /l/; Australian speakers typically have a slightly broader /æ/ and more centralized /ɔɪ/ quality, with non-rhotic tendencies being less pronounced today but still possible. Overall stress remains on AM-, with similar consonants.
Two main challenges: the /æ/ in AM- can be mispronounced as /e/ or /ə/, and the /ɔɪ/ diphthong in -loid requires precise tongue glide from /ɔ/ to /ɪ/ before the final /d/. Rapid speech can blur the /ɪ/ to /ɔɪ/ transition, and some speakers insert an extraneous vowel or split the syllables awkwardly (e.g., am-yloid). Practice with slow, deliberate articulation, then speed up while maintaining a clean /ɔɪ/ glide and final /d/.
A distinctive feature is the diphthong in the final syllable /ɔɪd/, which blends the mid-back rounded /ɔ/ with a high-front gliding /ɪ/ before the final alveolar /d/. This creates the characteristic AM-ih-LOID rhythm. Paying attention to the subtle lip rounding and jaw position between /ɔ/ and /ɪ/ helps distinguish amyloid from visually similar terms like 'android' or 'steroid.'
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Amyloid comes from the combination of the Greek prefix a- (not, without) and the Latin word myleus (marble, milky substance) via the French amyloïde. The term originated in the 19th century when pathologists observed eosinophilic, glassy, marble-like deposits in tissues and initially described them as resembling amyloid in appearance. Early researchers misclassified some deposits due to staining limitations. As histochemical techniques improved, it became clear that amyloid represents a distinct misfolded protein state, capable of forming beta-pleated sheet-rich fibrils. The name stuck as a descriptive noun for these protein aggregates. By the late 20th century, molecular understanding refined the scope to include diverse precursor proteins that can misfold and aggregate into amyloid fibrils, contributing to diseases such as Alzheimer's and systemic amyloidosis. The term now encompasses a broad family of proteinaceous deposits, all sharing similar morphology despite diverse origins and precursor proteins. First known uses appear in pathology literature from the 1840s–1850s, with formal refinement of the term in the 1900s as histology advanced.
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Words that rhyme with "Amyloid"
-oid sounds
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