2 syllables: lac, tate. Stress on lac.
/ˈlækteɪt/
Say it backLactate is a verb and noun relating to the production or presence of lactic acid, especially in muscles during intense activity, or to the process of converting sugar into lactic acid. In biology, it describes organisms that produce lactic acid as a metabolic byproduct. In chemistry, it refers to salts or esters of lactic acid. The term is common in physiology, biochemistry, and medicine.
- You’ll often produce a mis-timed onset with a too-short /æ/ and you blend the /t/ with the vowel; practice by isolating each segment. - Some speakers reduce /æ/ to schwa before the /t/, producing /ləˈteɪt/ or /ˈlæktəte/; resist this by enforcing a full /æ/ in the first syllable and a clean /eɪ/ in the second. - The final consonant is a crisp /t/. Slurring to /d/ or letting it disappear is a frequent error; emphasize the voiceless stop with a stop-release. - In rapid speech, vowels can collapse; slow down to maintain accurate /æ/ then /eɪ/.
"During sprinting, your muscles may lactate as lactic acid builds up."
"The liver can convert lactate back into glucose through the Cori cycle."
"Lactate dehydrogenase is an enzyme that converts lactate to pyruvate."
Pronounce as LAK-tate, with primary stress on the first syllable. IPA: US/UK/AU /ˈlækˌteɪt/. The first syllable uses the short a as in “cat,” and the second syllable has a long a as in “wait.” The t is a clean t—no extra flapping. Think: LAK-TEYT, and ensure the mouth closes for the final long vowel rather than turning it into a schwa.
Common mistakes: misplacing the stress by saying LAK-tate with even emphasis; mispronouncing the second syllable as /-tət/ or /-teɪt/ with reduced vowel. Correction tips: keep primary stress on LAK, then ensure the second syllable has a clear /eɪ/ diphthong and a crisp /t/. Practice with slow tempo, then speed up while maintaining crisp enunciation of /t/ and /eɪ/.
In US/UK/AU, lactate is consistently /ˈlækˌteɪt/. The main cross-dialect difference is vowel quality around the /æ/ in the first syllable and the quality of the final /eɪ/. Non-rhotic accents don’t affect /ˈlæk/ in this word. Australian speakers may exhibit slightly more centralized /æ/ and a crisp /t/; nevertheless, the diphthong in the second syllable remains /eɪ/.
The challenge lies in the two-syllable rhythm with a secondary stress pattern and the /æ/ versus /eɪ/ vowel sequence; the word ends with a crisp /teɪt/ rather than a flat /tət/. Learners often misplace stress or blur the /eɪ/ into a schwa. Focus on the transition from /æ/ to the long /eɪ/ and keep the final /t/ voiceless and clear.
Does the final 't' in lactate carry a light release or a strong plosive? It is a standard voiceless alveolar plosive /t/ with a clear release in careful speech. In rapid or connected speech, you might hear a t-glide or a slight unreleased t, but in careful pronunciation you’ll use a crisp /t/ to preserve the /teɪt/ ending for accuracy.
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- US: flatter vowel in the first syllable /ˈlæk/ with a stiff mouth, then a bright /eɪ/; keep non-rhoticity in mind if applicable. - UK: maintain clear /æ/ and a slightly longer /eɪ/; ensure the /t/ is aspirated in stressed positions. - AU: you may hear a broader, more open /æ/ and a crisp /teɪt/, with a tendency toward stronger vowel clarity. Always preserve the diphthong /eɪ/ in the second syllable and avoid reducing it to /ə/. IPA references: /ˈlækˌteɪt/ across dialects.
The word lactate comes from the French lactate, derived from lact- ‘milk’, via Latin lac, lactis ‘milk’. The chemical sense of the term (salt or ester of lactic acid) followed the discovery of lactic acid in milk and muscle tissue in the 19th century. The root lactic originates from lactic acid, first isolated by Carl Wilhelm Scheele along with Swedish chemist J.D. Bergman in the late 18th to early 19th century, when fermentation and muscle metabolism studies advanced. The suffix -ate is a standard chemical and biological marker indicating a salt or ester of an acid. In physiology, lactate entered medical lexicon in the 20th century as lactate dehydrogenase and lactate measurements became standard in blood gas and metabolic testing, distinguishing lactate production from pyruvate and guiding interpretations of anaerobic metabolism. Over time, “lactate” has extended beyond strictly chemical contexts to describe the physiological flux of lactate in exercise physiology and pathology, including lactic acidosis and lactatemia, with the term now common in clinical reports, biochemistry textbooks, and sports science literature.
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💡 These words have similar meanings to "lactate" and can often be used interchangeably.
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Words that rhyme with "lactate"
-ate sounds
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