• (n.) Olefiant gas or ethylene; -- so called by Berzelius from its forming an oil combining with chlorine. [Written also elayle.] See Ethylene.
E·la'yl noun [ Greek ... olive oil, oil + yl .] (Chemistry) Olefiant gas or ethylene; -- so called by Berzelius from its forming an oil combining with chlorine. [ Written also elayle .] See Ethylene .