Definition

Noun: 1. The force attracting atoms to each other and binding them together in a molecule: A specific type of physical force that causes atoms or molecules to adhere to one another, forming chemical bonds or stable associations. This is the primary scientific meaning. 2. (As 'affinity') A natural attraction or liking for something: In a more general, often figurative sense, it can describe a spontaneous or inherent attraction between entities, such as a substance's tendency to combine with another or a person's natural liking for something.

Examples of Usage

• Noun (Scientific):
  • The chemical attraction between sodium and chlorine ions results in the formation of table salt.
  • Understanding chemical attraction is fundamental to the study of molecular bonding.
• Noun (General/Figurative):
  • Basic dyes have a strong chemical attraction for protein fibers like wool. (This example directly uses the term to describe a specific interaction between substances.)
  • There was an immediate chemical attraction between the two artists; they shared the same creative vision. (Here, the term is used figuratively to describe a powerful, instinctive connection.)

Advanced Usage

• "To have an affinity for": This is a common phrase synonymous with experiencing a chemical attraction. It is frequently used in both scientific and general contexts.
  • Carbon monoxide has a dangerous affinity for hemoglobin in the blood.
• The term is often used interchangeably with "affinity" in chemistry and biochemistry to describe the strength of binding between molecules, such as an enzyme and its substrate.

Variants and Related Words

• Affinity (n): The most common direct synonym, encompassing both the specific chemical force and the general sense of attraction or kinship.
• Chemical bond (n): Refers more specifically to the stable, lasting linkage formed as a result of chemical attraction (e.g., covalent bond, ionic bond).
• Attraction (n): The broader, more general term for any force that draws things together, which can be physical, chemical, or metaphorical.

Synonyms

• Affinity
• Attractive force
• Bonding force
• Propensity (for the general sense of natural inclination)

Related Phrases

• Electrostatic attraction: A specific type of chemical attraction caused by the attraction between opposite electrical charges.
• Intermolecular force: A broader category of attractive forces molecules, which includes chemical attraction.

Related Idioms

• (To have) a natural affinity for: To possess an inherent, often unexplained, attraction or talent for something.
  • She has a natural affinity for languages and learns them quickly.

Noun

1. the force attracting atoms to each other and binding them together in a molecule
   • basic dyes have an affinity for wool and silk