from The Century Dictionary.

  • In organic chemistry, a term noting the presence, in the molecule of a compound, of three methyl groups, CH3. It is also used as a combining form.

from the GNU version of the Collaborative International Dictionary of English.

  • (Chem.) A prefix or combining form (also used adjectively) indicating the presence of three methyl groups.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun organic chemistry (in combination) Three methyl groups in a molecule.


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