Definition

1. Noun:
   • The act of linking things together: "linkage" refers to the process or result of connecting or joining two or more things.
   • A mechanical system of rods, springs, or pivots that transmits power or motion: In engineering, "linkage" describes an assembly of parts that transfers force or movement.
   • (Genetics) Traits that tend to be inherited together as a consequence of an association between their genes: In biology, "linkage" denotes the tendency for genes located close together on a chromosome to be inherited as a unit.
   • An associative relation: "linkage" can also mean a connection or relationship between ideas, events, or phenomena.

Usage Examples

• General Connection:
  • The linkage between diet and health is well established.
  • The report examines the linkage between economic growth and environmental policy.
• Mechanical System:
  • The throttle linkage in the car was broken, preventing acceleration.
  • A complex linkage of levers controls the movement of the robotic arm.
• Genetics:
  • Genetic linkage explains why certain characteristics, like eye color and hair color, are often inherited together.
  • Scientists study linkage to map the positions of genes on chromosomes.

Advanced Usage

• "Linkage analysis": In genetics, a method used to locate genes responsible for specific traits or diseases by studying how frequently they are inherited together.
  • Linkage analysis was crucial in identifying the gene associated with the disorder.
• "Linkage disequilibrium": A population genetics term describing the non-random association of alleles at different loci.
  • The study found strong linkage disequilibrium between the two genetic markers.
• "Institutional linkage": A connection between different organizations or systems.
  • The treaty created a formal institutional linkage between the two countries' trade ministries.

Variants and Related Words

• Link (n/v): A single connection or to connect.
  • A link in a chain.
  • The bridge links the two towns.
• Linker (n): In computing or chemistry, something that connects parts.
  • A linker molecule in DNA.
• Interlinkage (n): Mutual or reciprocal connection.
  • The interlinkage of global financial markets.

Synonyms

• Connection: A relationship in which a thing is linked or associated with something else.
• Coupling: A device for connecting parts of machinery; or the pairing of two items.
• Association: A mental connection between ideas; or an organization of people with a common purpose.
• Bond: Something that binds, ties, or fastens together.

Related Phrases

• "Weak/strong linkage": Describing the strength of a connection or association.
  • There is a strong linkage between smoking and lung cancer.
• "To establish a linkage": To create or prove a connection.
  • The study aimed to establish a linkage between the two variables.

Idioms and Fixed Expressions

• "Missing linkage": A play on the term "missing link," often used informally to describe a crucial connecting element that is absent.
  • The new evidence provides the missing linkage in the investigation.
• "Causal linkage": A connection where one thing is the cause of another.
  • The prosecutor failed to prove a causal linkage between the defendant's actions and the accident.

Noun

1. the act of linking things together
2. a mechanical system of rods or springs or pivots that transmits power or motion
3. (genetics) traits that tend to be inherited together as a consequence of an association between their genes; all of the genes of a given chromosome are linked (where one goes they all go)
4. an associative relation