English word diaryl comes from English aryl, English di-
| Dictionary entry | Language | Definition |
|---|---|---|
| aryl | English (eng) | (organic chemistry) Any univalent organic radical derived from an aromatic hydrocarbon by removing a hydrogen atom. |
| di- | English (eng) | (uncommon) Alternative form of dis-. Two, twice, or double A form of dia- before a vowel. |
| diaryl | English (eng) | (countable, organic chemistry) Any compound containing two aryl groups. (uncountable, organic chemistry, especially in combination) Two aryl groups in a compound. |