English word diphosphine comes from English di-, English phosphine
| Dictionary entry | Language | Definition |
|---|---|---|
| di- | English (eng) | (uncommon) Alternative form of dis-. Two, twice, or double A form of dia- before a vowel. |
| phosphine | English (eng) | (dyeing) chrysaniline, often in the form of a salt. (inorganic compound, uncountable) a toxic gas; hydride of phosphorus, PH3. (organic chemistry, countable) any alkyl or aryl derivative of this compound, PR3 (where at least one R is not H). |
| diphosphine | English (eng) | (countable, organic compound) Any organic compound that has two phosphine groups.. (uncountable, inorganic compound) The liquid hydride of phosphorus P2H4 which is spontaneously inflammable in air. |