English word pentafluoroethane comes from English ethane, English penta- (Five.), English fluoro- (Fluorescent. Fluorine.)
| Dictionary entry | Language | Definition |
|---|---|---|
| ethane | English (eng) | (organic compound, countable) The same compound, subjected to modification by replacing one or more of the hydrogen atoms with other radicals.. (organic compound, uncountable) An aliphatic hydrocarbon, C2H6, gaseous at normal temperatures and pressures, being a constituent of natural gas. |
| penta- | English (eng) | Five. |
| fluoro- | English (eng) | Fluorescent. Fluorine. |
| pentafluoroethane | English (eng) | (organic chemistry) A refrigerant and fire suppression agent with the chemical formula CF3CHF2. |