English word diethyl comes from English ethyl, English di-
| Dictionary entry | Language | Definition |
|---|---|---|
| ethyl | English (eng) | (organic chemistry) The univalent hydrocarbon radical, C2H5, formally derived from ethane by the loss of a hydrogen atom. |
| di- | English (eng) | (uncommon) Alternative form of dis-. Two, twice, or double A form of dia- before a vowel. |
| diethyl | English (eng) | (organic chemistry) Two ethyl groups attached to the same molecule. |