from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A colorless flammable gas, C2H4, derived from natural gas and petroleum and used as a source of many organic compounds, in welding and cutting metals, to color citrus fruits, and as an anesthetic. Also called ethene.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The common name for the organic chemical compound ethene. The simplest alkene, a colorless gaseous (at room temperature and pressure) hydrocarbon with the chemical formula C2H4.
- n. The divalent radical derived from ethane.
from the GNU version of the Collaborative International Dictionary of English
- n. A colorless, gaseous hydrocarbon, C2H4, forming an important ingredient of illuminating gas, and also obtained by the action of concentrated sulphuric acid in alcohol. It is an unsaturated compound and combines directly with chlorine and bromine to form oily liquids (Dutch liquid), -- hence called olefiant gas. Called also ethene, elayl, and formerly, bicarbureted hydrogen.
from The Century Dictionary and Cyclopedia
- n. C2H4. A colorless poisonous gas having an unpleasant, suffocating smell.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic
Sorry, no etymologies found.