Oxidane

Part of speech: noun

Definitions

1. A colorless, odorless liquid compound composed of hydrogen and oxygen atoms in a 2:1 ratio, essential for all known forms of life and covering most of Earth's surface
2. A clear, tasteless liquid made of two hydrogen atoms and one oxygen atom, vital for biological processes and present in numerous ecosystems across the planet
3. This transparent and inodorous substance, comprised of two hydrogen and one oxygen, plays a crucial role in sustaining life and is abundant in nature

Etymology: Oxidane is a name chemists coined by applying a systematic pattern to an older word. Its root is "oxide", which came into English in the early 19th century from French "oxide", itself built on "oxygène", the name Lavoisier gave to the element in the 1780s from Greek "oxús" (sharp, acid) and "génos" (birth or origin), since he believed oxygen was the source of acidity. Oxygen's name thus encodes a mistaken theory, and every compound named after it inherits that history. The ending "-ane" is the surprising part. It comes from the Latin "-ānus" and was adopted by chemists as a systematic marker for binary hydrogen compounds, the same pattern behind "silane", "methane" and "ammonia"-family names. Adding it to "oxide" yields the name of water as a hydrogen compound: H2O, read as oxygen joined to hydrogen. Water already had a common name, so "oxidane" is used mainly in formal nomenclature, where it lets chemists name water systematically alongside other hydrides.

Synonyms: water, dihydrogen monoxide, H2O