Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
any gas in a group that contains carbon and hydrogen atoms, with the carbon atoms joined together in a double bond :
any of a group of substances that contain only the elements carbon and hydrogen, which are held together by a chemical bond in which two atoms share two pairs of electrons
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions
