dimethyl

From di- +‎ methyl.

• (Received Pronunciation) IPA^(key): /daɪˈmiː.θɪl/, /daɪˈmɛθ.ɪl/

• Audio (Southern England):

  (file)

• (General American) IPA^(key): /daɪˈmɛ.θəl/
• Rhymes: -ɛθɪl, -iːθɪl

dimethyl (uncountable)

1. (organic chemistry, in combination) Two methyl groups in a molecule.
   • 2025 April 18, “Scientists detect strong evidence of life on an alien planet”, in France 24‎^[1], archived from the original on 18 April 2025‎^[2]:

     By analysing data from the James Webb Space Telescope, the researchers found evidence of dimethyl sulfide and dimethyl disulfide in the atmosphere of the planet known as K2-18b. The planet is 124 light-years away; one light-year is equivalent to nearly 6 trillion miles.