rhigolene

[ rig-uh-leen ]

/ ˈrɪg əˌlin /

a petroleum distillate intermediate between cymogene and gasoline, formerly used to produce local anesthesia by freezing.

Origin of rhigolene

1865–70; < Greek rhîg(os) frost, cold + -ol² + -ene

rheumy, rhexis, rheydt, rhg, rhiannon, rhigolene, rhin-, rhinal, rhinal sulcus, rhinalgia, rhine

Then, as the temperature rises to 18 C., rhigolene is given off: that is collected and condensed in another vessel.

Marvels of Scientific Invention |Thomas W. Corbin
Rhigolene is now used in medicine in the form of spray to produce local anæsthesia.

Poisons: Their Effects and Detection |Alexander Wynter Blyth
The lighter and more volatile portions are known under the name of cymogene, rhigolene, gasolene, and naphtha.

Poisons: Their Effects and Detection |Alexander Wynter Blyth

rhigolene

/ (ˈrɪɡəʊˌliːn) /

a volatile liquid obtained from petroleum and used as a local anaesthetic

C19: from Greek rhigos cold; see -ole, -ene