4 syllables: Di, a, stem, a. Stress on stem.
deye-uh-STEM-uh
/daɪəˈstɛmə/
Diastema is pronounced deye-uh-STEM-uh (/daɪəˈstɛmə/). It has four syllables (Di-a-stem-a), with the stress on "stem". Diastema is a medical term referring to a noticeable gap between two teeth, most often the front incisors. In dentistry, it can be a normal variation or a condition that may require cosmetic or functional consideration. The term is used across clinical and academic contexts to describe this dental spacing phenomenon.
nounDiastema is a medical term referring to a noticeable gap between two teeth, most often the front incisors. In dentistry, it can be a normal variation or a condition that may require cosmetic or functional consideration. The term is used across clinical and academic contexts to describe this dental spacing phenomenon.
How to Pronounce Diastema
"The patient presented with a diastema between the upper central incisors."
"Some people seek cosmetic treatment to close a diastema for a more uniform smile."
"A diastema can occur naturally in children as teeth erupt and align."
Diastema is pronounced die-AS-tee-ma with the primary stress on the second syllable. IPA: US/UK/AU - /ˌdaɪ.æsˈtiː.mə/. Break it into syllables: di-as-te-ma, with the 'as' sounding like 'as' in 'assess' and the final 'ma' like 'muh'. Start with /daɪ/ (dye) then /æ/ (as in 'cat') or /ə/ depending on accent, then /ˈtiː/ (TEE) and finally /mə/ (muh). For clarity, think: dye-AS-TEE-muh. Audio reference: you can compare to pronunciations on Pronounce or Forvo by searching “diastema.”
Common errors include flattening the second syllable to /ti/ with weak stress, pronouncing /æs/ too short as in 'ass', and misplacing the stress on the first syllable. To correct: emphasize the /ˈtiː/ portion with a longer vowel and clear consonants, keep /æ/ or /ə/ in the second syllable short but distinct, and maintain the overall secondary-stress pattern so the word sounds like die-AS-TEE-muh.
In US, UK, and AU, the main feature is the rhoticity and vowel length. US/UK/AU all place primary stress on the second syllable: di-AS-te-ma, with /ˈtiː/ as a long vowel. Differences appear in vowel quality: US tends to make the /a/ more open in /æ/ vs /ə/ in unstressed positions; UK often uses a shorter /iː/ in some speakers, and AU tends toward a slightly broader, sometimes more relaxed vowel in unstressed syllables. Overall, the rhythm and stress remain consistent across three varieties.
The difficulty lies in the two-part structure: a front diphthong /daɪ/ and a long mid-lip /ˈtiː/ that requires precise timing between syllables. The sequence /æs/ before the stressed /tiː/ can misplace stress or shorten the preceding vowel. Additionally, the trailing /mə/ can blur if you don’t release the final consonant clearly. Practice by segmenting to /daɪ.æsˈtiː.mə/ and focusing on the long /iː/ and the clean /t/ release.
A unique feature is keeping the second syllable strong and clearly separate from the first, especially since the word’s clinical usage makes the /æs/ transition important. The combination of /ˌdaɪ.æsˈtiː.mə/ requires attention to the long /iː/ and the unstressed final schwa-like /mə/. Also, the 'di' at the start is a separate syllable with a distinct /aɪ/ diphthong, not a simple /di/ like in 'diet'.
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- US: rhotic, with strong /r/ presence only if included in surrounding context; focus on clear /ˈtiː/. Weight the second syllable with more energy than the first. - UK: less rhotic influence; more reliance on crisp T release and clear long /iː/; avoid flapping if you read the word in isolation. - AU: generally non-rhotic, with broader vowel qualities; keep /ˈtiː/ stable and reduce any obstruent lenition on /d/; maintain the diphthong in /daɪ/ without overemphasizing the /aɪ/ in rapid talk. - IPA references: US /ˌdaɪ.æsˈtiː.mə/, UK /ˌdaɪ.æsˈtiː.mə/, AU /ˌdaɪ.æsˈtiː.mə/.
Diastema comes from the Greek diastēma, meaning a gap or interval, from dia- meaning through or apart and stēma meaning a stand or position. The term entered medical vocabulary from Greek roots used in anatomy and dentistry to describe spaces between adjacent teeth or other structures. Historically, ancient Greek texts and later Latin medical compendia used similar compounds (diastema) to denote spaces between elements in the body. In dental literature, the word has long served to distinguish gaps that are not due to missing teeth but rather to tooth size, arch length discrepancies, or habitual positional forces. Over time, the term has broadened to include maxillary diastemas (between upper incisors) and mandibular diastemas, and it appears in clinical descriptions, orthodontic records, and literature analyzing facial aesthetics and occlusion. First known use in English appears in the late 19th to early 20th century dental writings, aligning with the period when standardized dental terminology expanded to include precise descriptors of tooth alignment and spacing. Today, diastema remains a common diagnostic term in orthodontics and cosmetic dentistry, as well as in anthropological discussions of dental morphology across populations.
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Words that rhyme with "Diastema"
-eta sounds
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