English word dimethyl comes from English methyl, English di-
| Dictionary entry | Language | Definition |
|---|---|---|
| methyl | English (eng) | (organic compound) The univalent hydrocarbon radical, CH3, formally derived from methane by the loss of a hydrogen atom; a compound or part of a compound formed by the attachment of such a radical. |
| di- | English (eng) | (uncommon) Alternative form of dis-. Two, twice, or double A form of dia- before a vowel. |
| dimethyl | English (eng) | (organic chemistry) (in combination) Two methyl groups in a molecule. |