| Answer | Crossword Clue |
|---|---|
| olefins | OLEFIN, an alkene, also OLEFINE |
| olefines | OLEFINE, an alkene, also OLEFIN |
| olefinic | pertaining to olefin (an alkene, also OLEFINE) |
| olefin | an alkene, also OLEFINE |
| olefine | an alkene, also OLEFIN |
| pentylene | an unsaturated hydrocarbon of the olefine series also PENTENE |
| pentylenes | PENTYLENE, an unsaturated hydrocarbon of the olefine series also PENTENE |
