Etymology:
Meaning:
Origin:
The term "chiral" was first coined in 1848 by the British chemist William Thomson (later Lord Kelvin) to describe certain crystals that exhibit different optical properties when viewed from different angles.
Thomson chose the term "chiral" because it is derived from the Greek word "cheir," which means "hand." He compared the symmetry of chiral crystals to that of a pair of human hands: although the two hands are mirror images of each other, they are not superimposable.
In chemistry, the term "chiral" is used to describe molecules or objects that lack a plane of symmetry or an inversion center. This means that the molecule or object cannot be superimposed on its mirror image.
Chirality is a fundamental property of many biological molecules, such as proteins and nucleic acids. The chirality of these molecules is essential for their biological activity.
Etymology Greek cheir hand Latin chīragra gout in the hand Meaning Rela
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