4 syllables: Po, ly, mer, ase. Stress on Po.
PAH-lim-ur-ays
/ˈpɑˌlɪmɚˌeɪs/
Polymerase is pronounced PAH-lim-ur-ays (/ˈpɑˌlɪmɚˌeɪs/). It has four syllables (Po-ly-mer-ase), with the stress on "Po". A polymerase is an enzyme that synthesizes long chains of nucleotides from a nucleic acid template, typically DNA or RNA. It plays a central role in replication, transcription, and repair, using nucleotide substrates to build complementary strands. In biology, polymerases vary by function (e.g., DNA polymerase, RNA polymerase) and fidelity, influencing genetic information propagation and mutation rates.
nounA polymerase is an enzyme that synthesizes long chains of nucleotides from a nucleic acid template, typically DNA or RNA. It plays a central role in replication, transcription, and repair, using nucleotide substrates to build complementary strands. In biology, polymerases vary by function (e.g., DNA polymerase, RNA polymerase) and fidelity, influencing genetic information propagation and mutation rates.
"The polymerase enzyme catalyzes the replication of DNA in the cell."
"RNA polymerase trans transcribes DNA into messenger RNA within the nucleus."
"Hereditary disorders can arise from mutations in specific DNA polymerases."
US/UK/AU pronunciation centers on the three parts: po- LYE- mer- ase. The primary stress is on the -mer- syllable: /ˌpɒlɪˈmeɹeɪs/ (US) or /ˌpɒlɪˈmɪərˌeɪs/ (UK), with the final -ase sounding like 'ace' /eɪs/. Start with /ˌpɒlɪ/ then /ˈmer/ stretched a touch, and finish /eɪs/. Audio references: Cambridge/Oxford pronunciations corroborate the /ˌpɒlɪˈmeɹeɪs/ pattern, often with a lightly rolled /r/ in US, non-rhotic accents in part of the UK can reduce the r. Think 'poly' as in 'polly,' 'mer' as in 'merry,' then 'ase' as in 'ace'.
Common errors include misplacing stress on the first or second syllable (e.g., /ˈpoʊlɪˌmerˌeɪz/), and mispronouncing the final -ase as 'ass' or 'ase' as /æz/ instead of /eɪs/. Another frequent issue is flattening the middle syllable—people say /ˌpɒlɪˈmɜːrɪz/ or mix up the 'mer' with 'more'. Correction: keep stress on -mer-, render 'poly' as 'POL-ee' with short /ɒ/ or /ɑ/ depending on accent, and end with /eɪs/; practice with minimal pairs and record yourself.
US tends to have a rhotic /ɹ/ in 'mer' and a clear /eɪs/ ending; UK often features non-rhoticity with a tighter /ˈmer/ and sometimes a shorter /ɪ/ in 'polɪ' and a longer final /eɪs/. Australian tends to be rhotic like US but with a broader vowel in 'poly' (/ˈpɒlɪ/ may sound closer to 'pol-uh' to some listeners) and a precise /ˈmeɪs/ ending. Listen for subtle vowel shifts in the second syllable and the rhotic or non-rhotic treatment of 'mer'.
It mixes a stressed mid syllable with a trailing -ase suffix that often sounds like a separate word; the sequence 'poly-' can bias learners toward strong first-stress patterns, while the 'merase' part requires careful mouth positioning for /mɚeɪs/ in some dialects. The consonant cluster /l/ followed by /m/ in quick speech can blur. Practice by isolating each part: 'poly-' (/ˈpɒlɪ/), then 'mer-' (/məˈɹeɪ/), then 'ase' (/s/ or /z/ depending on context) and blend slowly.
There are no silent letters in Polymerase, but the difficulty lies in maintaining a strong, primary stress on -mer- and a clean, high-front vowel in the final /eɪs/. The /l/ in 'pol' is light but requires clear alveolar contact, and the /r/ (where present) should be pronounced with a controlled, light American /ɹ/ or rolled variant in some accents. Emphasize the three-syllable cadence: poly- /ˈpɒlɪ/, mer- /ˈmeɹ/ or /ˈmɪə/, ase /eɪs/.
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Polymerase derives from the Greek poly- meaning 'many' or 'much' and the Latin-derived -ase suffix used for enzymes, from the enzyme nomenclature system used in biochemistry. The term indicates a catalyst that acts on polymers. The root polymer- comes from Greek poly-, meaning many, and mer, from the word terums tied to units or parts; polymerization refers to combining many units. The suffix -ase was coined in the 19th and 20th centuries to classify enzymes by catalytic action. First known usage in the early to mid-20th century aligns with the rise of molecular biology and polymer science, as researchers defined RNA and DNA polymerases and their roles in replication and transcription.
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Words that rhyme with "Polymerase"
-ize sounds
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