ribose
UK[ˈraɪbəʊz]US[ˈraɪboʊs]
n
A sugar that is a constituent of RNA and several vitamins and coenzymes.
Etymology
The term 'ribose' has a concise etymological story rooted in scientific nomenclature. It originates from the sugar 'arabinose', identified in gum arabic, a substance derived from acacia trees. In 1891, the German chemist Emil Fischer created the name 'Ribose' by removing the initial 'ar-' from 'Arabinose' to form a shorter, distinct name for the new pentose sugar he derived from it. This act of truncation and repurposing illustrates a common practice in chemical naming, where terms are adapted for brevity and clarity, linking the new substance back to its chemical precursor rather than to a descriptive morphemic construction.
Analysis
The word is a modern scientific formation, not composed of separable English morphemes. It is derived from the German 'Ribose', itself a rearrangement of 'Arabinose', a sugar first found in gum arabic, with the 'ar-' syllable removed.
Examples
Ribose is a key component of the backbone of RNA molecules.
ATP, the energy currency of the cell, contains a ribose sugar.
Some nutritional supplements contain D-ribose for potential energy support.