LAB-ruh-taw-reez
/ˈlæbɹəˌtɔɹiz/
laboratories is pronounced LAB-ruh-taw-reez (/ˈlæbɹəˌtɔɹiz/). Laboratories are facilities equipped for scientific research, experimentation, and analysis. They house specialized equipment and staff who conduct controlled tests to generate reliable data. The term encompasses a range of settings, from medical labs to industrial and academic laboratories, where systematic methods and safety protocols underpin discovery and verification.
Laboratories are facilities equipped for scientific research, experimentation, and analysis. They house specialized equipment and staff who conduct controlled tests to generate reliable data. The term encompasses a range of settings, from medical labs to industrial and academic laboratories, where systematic methods and safety protocols underpin discovery and verification.
"The university opened three new laboratories to support biomedical research."
"Industrial laboratories must adhere to strict safety standards and quality controls."
"They recruited technicians with experience in chemical, biological, and physical assays for the laboratories."
Pronounce as /ˌləbəˈrætəriz/ in broad transcription for many speakers. The primary stress falls on the third syllable: la-buh-RAY-tor-eez in some vowels—depending on accent. A practical way: say "LA-buh-RA-tor-ies" with emphasis on the second to last syllable. In IPA, US: /ˌlæbəˈrætəriːz/; UK: /ˌlɑː.bəˈræt.ər.iz/; AU: /ˌləbəˈreɪtəɹiz/. Note: listeners perceive the metrical rhythm as four syllables in rapid speech, with a lighter final /ɪz/ or /iːz/ ending. Listening to a model read-aloud can help you align your timing and vowel quality.
Two frequent errors: (1) Misplacing the primary stress, saying la-BOR-a-tor-ies or la-BA-ra-tor-ies with wrong emphasis. (2) Vowel quality in the second syllable: using a lax /ə/ in a stressed position or confusing /æ/ with /ə/. Correct by keeping the second syllable light but clear, and delivering the main stress on the 'RA' or 'RAT' syllable depending on speaker. Practice with minimal pairs like la-BOR-a-tor-ies vs la-buh-RAT-uh-reez and record to ensure consistent rhythm.
US: stress pattern emphasizes the third syllable with a broad /æ/ in the stressed syllable and a pronounced final -iz. UK: more even vowel lengths, final /iz/ often lighter, with non-rhoticity affecting /r/ presence before vowels. AU: similar to UK but with broader centralized vowels and slightly flatter intonation. Across all, the middle syllable often carries the strongest energy, and the final '-aries' can be realized as /-əriːz/ in some speakers. IPA cues help: US /ˌləbəˈræ təriːz/, UK /ˌlɑːbəˈrætəriz/, AU /ˌləbəˈræ təriz/.
The difficulty centers on the sequence -borat- in some pronunciations and the plural ending -ies. The combination of a mid-to-high back vowel in the second syllable and a rapid transition into the unstressed final -ies can blur, especially for non-native or fluent speakers who are not used to multi-syllabic, stress-timed words. Focus on the stressed sabsolute segment around the third syllable and separate the suffix -or- from the ending -ies with a light, quick glide.
You’ll notice the cluster lə-bə- ra- tɔ-ɹiːz (in some accents) requires precise tongue positioning for the alveolar trill-like /t/ and the r-colored vowels in American and British forms. The interplay of unstressed schwa in the first syllable and the clear, stressed vowel in the third syllable requires good control over vowel reduction and rhythm. Achieve accuracy by isolating the segments: /ˈlɑː.bəˈræt.əˌriːz/ vs /ˌləbəˈræˌtɔː.riːz/ and practicing with slow-to-fast tempo to lock in natural linked speech.
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The word laboratories comes from the Medieval Latin word laboratory, from laboratorio (to balance, to weigh, to test), which itself derives from Latin labor, meaning work, exertion. The suffix -atorium, from Latin -atorium, indicates a place for a particular activity, akin to ‘a place of work’ or ‘a place for a specific operation.’ The plural form -ies aligns with English noun formation rules for words ending in -ary that become -aries when pluralized, a pattern seen in other scientific terms. The modern sense—an organized place equipped for experiments—emerged in the late 19th to early 20th century with the expansion of formalized scientific laboratories in universities and industry, reflecting standardization of equipment, safety practices, and experimental methodology.
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💡 These words have similar meanings to "laboratories" and can often be used interchangeably.
🔄 These words have opposite meanings to "laboratories" and show contrast in usage.
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Words that rhyme with "laboratories"
-ies sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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