Definition

1. Adjective:
   • Rotating to the right: In chemistry and physics, describes a substance (especially an optically active compound) that rotates the plane of polarized light to the right (clockwise) when viewed towards the light source.

Usage

• The term is used almost exclusively in scientific contexts, particularly in optics, chemistry, and biochemistry, to describe the direction of optical rotation.
• It is synonymous with "dextrorotatory" and "right-handed" in this specific context. The opposite property is "levorotary" or "levorotatory" (rotating to the left).

Examples

• Adjective:
  • Dextrorotary sugars, like D-glucose, are commonly found in nature.
  • The chemist identified the compound as dextrorotary based on its interaction with polarized light.
  • A dextrorotary substance will show a positive (+) specific rotation value.

Advanced Usage

• Specific Rotation: The precise measurement of a compound's optical activity. A compound has a positive specific rotation ([α] > 0).
• Chirality: The property is a physical manifestation of molecular chirality (handedness), but the direction of rotation cannot be predicted from the molecular structure alone; it must be measured experimentally.

Variants and Related Words

• Dextrorotatory (adj): A full synonym for .
• Dextro- (prefix): A prefix meaning "to the right," used in terms like (the act of rotating to the right) and (heart on the right side of the body).
• D- (prefix): In sugar and amino acid nomenclature, the capital "D" (for ) often refers to the absolute configuration of the molecule, which is related to, but not always the same as, its optical activity. For example, D-glucose is , but D-fructose is .

Synonyms

• Dextrorotatory: (adj) Rotating to the right.
• Right-handed: (adj) In the context of optical activity, synonymous with .

Antonyms

• Levorotary / Levorotatory: (adj) Rotating to the left.
• Left-handed: (adj) In the context of optical activity, the opposite of .

Adjective

1. rotating to the right