see-nuh-ZOH-ik
/ˌsinəˈzoʊɪk/
Cenozoic is pronounced see-nuh-ZOH-ik (/ˌsinəˈzoʊɪk/). Cenozoic (noun) refers to the most recent of the three major subdivisions of Earth's geological time scale, spanning from about 66 million years ago to the present. It follows the Mesozoic era and is characterized by the rise of mammals and significant climatic and ecological changes. In scholarly contexts, it denotes the current era and its subepochs, epochs, and stages.
nounCenozoic (noun) refers to the most recent of the three major subdivisions of Earth's geological time scale, spanning from about 66 million years ago to the present. It follows the Mesozoic era and is characterized by the rise of mammals and significant climatic and ecological changes. In scholarly contexts, it denotes the current era and its subepochs, epochs, and stages.
How to Pronounce Cenozoic
"The fossil record shows a marked diversification of mammals during the Cenozoic."
"Researchers study Cenozoic strata to understand recent climate shifts."
"The Cenozoic epoch includes important events like the development of grasslands."
Pronounce CE-nə-ZOY-ik with primary stress on the zo- syllable: /ˌsenəˈzoɪɪk/ in US and UK patterns, though British rhoticity can slightly color the final -ik. The middle syllable carries the strongest emphasis, and the -ic ending is /-ɪk/. Start with /ˈsɛn/ or /ˈsiː/ depending on your dialect, but keep the /ˈzoɪ/ sounds clear. Listen to it in context: ‘the Cenozoic era’ will repeatedly trigger the /zoɪ/ with a crisp /k/ at the end.
Two common errors: misplacing stress on the second syllable or flattening the /zoɪ/ into /zoʊ/ or /zoʊɪ/. Correct by emphasizing the /zoɪ/ block and ending with a crisp /k/. Another pitfall is mispronouncing the first syllable as /ˈsɛnə/ instead of /ˈsiːnə/ in some speakers; keep the onset clear but not overly long. Practice with minimal pairs and record yourself to confirm the middle is the focus.
US tends to pronounce as /ˌsenəˈzoɪɪk/ with clear /ɪ/ vowel and rhotic r-less ending; UK often shifts the final vowel slightly and may reduce the second vowel more, giving /ˌsenəˈzɔɪɪk/ with less r-coloring. Australian follows US patterns but with a more centralized mid vowel in some speakers; the /ɪ/ of -ic can be reduced toward a schwa in casual speech. In all, the /zoɪ/ nucleus remains the prominent stress block; the ending /ɪk/ stays crisp.
The tricky parts are the multisyllabic rhythm around the middle /zoɪ/ and the final /ɪk/ seal. The /zoɪ/ combines z + o + ɪ; co-articulation can blur the vowel quality. Additionally, non-native speakers often misplace the primary stress, placing it on the first syllable or incorrectly distributing among the three main beats. Practice by isolating /zoɪ/ and ensuring a clean, brief /k/ release.
There are no silent letters in Cenozoic, but the sequence /zaɪ/ can be tricky; some speakers momentarily reduce syllables in fast speech, and the /ɪ/ in -ic can reduce to a schwa. The key is clearly articulating /zoɪ/ and not letting the final /k/ blend into the preceding vowel. Focus on the transition from /zo/ to /ɪ/ with a distinct glide to /k/.
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Cenozoic comes from the combination of the Greek prefix kainos (new) orenos (recent) and the zōikos (of life) from zo- (life) and -zoic (pertaining to life or an era). The term was popularized in the 19th and 20th centuries as geologists refined the Earth’s timeline. The word signals a delineation from the older, ancient Earth to more recent life forms, particularly after the mass extinction at the end of the Cretaceous. The first known uses appear in scholarly writings that proposed dividing Earth history into major eons, eras, and periods to reflect changes in fauna, flora, and climate. Over time, Cenozoic has become the standard label for the era spanning roughly 66 million years ago to today, with subdivisions such as the Paleogene, Neogene, and Quaternary. The evolution of the term mirrors advances in stratigraphy and paleontology, where precise fossil records and radiometric dating allowed scientists to assign events to this relatively recent section of geologic time.
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Words that rhyme with "Cenozoic"
-nic sounds
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