5 syllables: hy, po, tha, la, mus. Stress on tha.
heye-poh-THAH-luh-muhs
/ˌhaɪpoʊˈθɑləməs/
hypothalamus is pronounced heye-poh-THAH-luh-muhs (/ˌhaɪpoʊˈθɑləməs/). It has five syllables (hy-po-tha-la-mus), with the stress on "tha". A region of the brain located below the thalamus, forming part of the hypothalamic-pituitary axis and regulating autonomic functions, temperature, hunger, and circadian rhythms. It plays a central role in integrating endocrine and nervous system signals to maintain homeostasis. The term denotes the hypothalamus, a bilateral structure connected to various brain systems. It is essential in physiology and neuroendocrinology research.
A region of the brain located below the thalamus, forming part of the hypothalamic-pituitary axis and regulating autonomic functions, temperature, hunger, and circadian rhythms. It plays a central role in integrating endocrine and nervous system signals to maintain homeostasis. The term denotes the hypothalamus, a bilateral structure connected to various brain systems. It is essential in physiology and neuroendocrinology research.
"The hypothalamus triggers hormone release in response to stress."
"Researchers mapped neural circuits linking the hypothalamus to appetite regulation."
"In rats, lesions of the hypothalamus disrupt sleep-wake cycles."
Break it as hi-po-THAL-uh-muhs, with stress on the third syllable: /ˌhaɪ.pəˈθæ.lə.məs/ (US) or /ˌhaɪ.pəˈθæ.lə.məs/ (UK/AU). Start with hi as in high, po as in pod, THAL as in ‘thal’ with a clear pʰ-tʰ blend, then uh with a relaxed schwa, and muhs at the end. Think: hi-po-THAL-uh-mus. Audio references: you can compare with Cambridge or Oxford pronunciations and Forvo samples for speaker variations.
Common errors: misplacing stress (say hi-po-THA-la-mus); confusing the thal- segment with ‘thal-uh-’ as in ‘thermo-’; and slurring the final -mus. Corrections: place primary stress on the -thal- syllable (haɪ.pəˈθæ.lə.məs), maintain /θ/ as a voiceless dental fricative, and finish with a crisp /məs/ rather than merging into a nasalized ending. Practice with minimal pairs and slow speed to fix stress and consonant clarity.
US tends to clear /θæ/ with a slightly tensed first vowel; UK and AU share /ˈhaɪpəˌθæləˌmʌs/ patterns but AU sometimes shows a more open front vowel in -æ- and a glottalization tendency in rapid speech. Rhoticity is not a major factor here; both US/UK/AU generally pronounce ly with non-rhotic r-lessness in careful speech. Compare US /ˌhaɪ.pəˈθæ.lə.məs/ to UK/AU /ˌhaɪ.pəˈθæ.lə.məs/ with minor vowel quality shifts and tempo differences.
Two main challenges: firstly the cluster -th- followed by a stress shift creates a complex syllable boundary that can invite mis-accenting. Secondly, the sequence -lə-məs ends with a light, unstressed schwa followed by an -məs that can blur in fast speech. Focused practice on the sequence THAL-uh-muhs, holding the /æ/ clearly and finishing with /məs/. IPA cues: /ˌhaɪ.pəˈθæ.lə.məs/—practice with slow-to-fast progressions to stabilize rhythm.
No, all letters contribute to the pronunciation, but the syllable boundaries can mislead listeners. The sequence -th- is clearly pronounced as /θ/, not silent, and the final -us is pronounced /əs/ in fluent speech or /əs/ in careful articulation. The key is to enunciate TH- as a distinct dental fricative and not reduce the -ə- before -məs too aggressively.
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Hypothalamus comes from modern Latin, late Greek and medical latin roots. The prefix hypo- means 'under' or 'below' in Greek, and the root thymos refers to 'mind' historically in older contexts but here enters through hormones as a compound conceptualization. The term hypothalamus entered anatomical usage in the 19th century as neuroanatomists refined brain maps. The root -thalamus itself derives from Greek thalamos, meaning 'inner chamber' or 'room,' used in anatomy to describe a central brain region. The compound hypothalamus thus originally signified the structure below the thalamus, a naming convention reflecting its location within the diencephalon. The concept’s meaning broadened as endocrinology and neurophysiology advanced, clarifying its role in homeostatic and neuroendocrine control. First known uses appear in late 19th to early 20th century medical literature as brain segmentation methods matured, with formal definitions coalescing as the hypothalamic-pituitary axis was recognized as a functional unit. Modern studies emphasize its integrated signaling, connecting neural activity with hormonal outputs that sustain energy, temperature, and reproductive processes. The term’s evolution mirrors the expansion of brain science from purely anatomical descriptions to functional, systems-level understanding of brain-body regulation.
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💡 These words have similar meanings to "hypothalamus" and can often be used interchangeably.
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Words that rhyme with "hypothalamus"
-nus sounds
-mus sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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