Wiktionary
n. 1 (context inorganic chemistry English) Any compound not containing carbon atoms. 2 (context inorganic chemistry English) Any compound containing carbon atoms ionically bound to other atoms.
WordNet
n. any compound that does not contain carbon
Wikipedia
An inorganic compound is a compound that is not organic. The term is not well defined, but in its simplest definition refers simply to compounds that do not contain carbon, and not consisting of or deriving from living matter. Inorganic compounds are traditionally viewed as being synthesized by the agency of geological systems. In contrast, organic compounds are found in biological systems. The distinction between inorganic and organic compounds is not always clear. Organic chemists traditionally refer to any molecule containing carbon as an organic compound and by default this means that inorganic chemistry deals with molecules lacking carbon. As many minerals are of biological origin, biologists may distinguish organic from inorganic compounds in a different way that does not hinge on the presence of a carbon atom. Pools of organic matter, for example, that have been metabolically incorporated into living tissues persist in decomposing tissues, but as molecules become oxidized into the open environment, such as atmospheric CO, this creates a separate pool of inorganic compounds. The International Union of Pure and Applied Chemistry, an agency widely recognized for defining chemical terms, does not offer definitions of inorganic or organic. Hence, the definition for an inorganic versus an organic compound in a multidisciplinary context spans the division between organic life living (or animate) and inorganic non-living (or inanimate) matter.
Usage examples of "inorganic compound".
The cloudiness in the Europan water could be from any sort of inorganic compound, but it could not be from the fascinating assorted detritus of living things, the miscellany that made every scoop of Earth water an experiment, a sample that might contain a previously unclassified species of life.