cline

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Thân thiện
Definition
  1. Noun:
    • A graded series of differences within a species or other group: A "cline" refers to a continuous, gradual change in a characteristic across a geographical area or within a population. The variation is typically related to environmental gradients.
    • A continuum: In a broader linguistic or conceptual sense, a "cline" can describe any scale or spectrum where elements vary by degree rather than by distinct categories.
Examples of Usage
  • Noun:
    • Biologists observed a north-south cline in the size of the bird's beak, with larger beaks found in colder climates.
    • The concept of proficiency exists on a cline, from beginner to advanced, rather than in fixed stages.
    • The plant's leaf shape shows a clear altitudinal cline along the mountain slope.
Advanced Usage
  • "Genetic cline": A gradient in the frequency of a gene or trait across a geographical region.
    • The study mapped the genetic cline for disease resistance across the continent.
  • "Clinal variation": Variation that occurs along a cline.
    • Clinal variation in skin pigmentation is often correlated with latitude.
Variants and Related Words
  • Clinal (adj): Relating to or characteristic of a cline.
    • The clinal distribution of the trait was evident.
  • Clinoid (adj): Resembling a cline (less common).
Synonyms
  • Gradient: A continuous increase or decrease in a property.
  • Continuum: A continuous sequence in which adjacent elements are not perceptibly different.
  • Spectrum: A broad range of varied but related ideas or objects.
Notes on Different Meanings
  • The word "Cline" with a capital 'C' is also a proper noun, a surname (e.g., the geneticist mentioned in the reference). However, the common noun "cline" (lowercase) is a standard term in biology, linguistics, and other fields to describe continuous gradation. This entry focuses on the common noun usage.
Noun
  1. American geneticist who succeeded in transferring a functioning gene from one mouse to another (born in 1934)

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