ENGLISH
REFERENCE

cline

n.
C2 Proficiency US //ˈkɫaɪn// UK //klˈaɪn// cline

n. a gradual change in a physical or biological trait across a specific area. It is like a smooth slope where one thing slowly turns into another.

n. a gradual change in a trait or characteristic across a geographic or environmental gradient. Often used in biology to describe the transition between species or in linguistics to describe a shift in language features.


SIMPLE

The cline in temperature is very noticeable as you move up the mountain.

CONTEXTUAL

Biologists observed a cline in the size of the birds as they moved from the coastal regions to the interior forests.

COMPLEX

The study identified a sharp cline in genetic markers between the northern and southern populations, suggesting a recent barrier to gene flow that has persisted for several generations.

Etymology 1

From Ancient Greek κλῑ́νω (klī́nō, “to lean, incline”). Introduced by English evolutionary biologist and eugenicist Julian Huxley in 1938 after British mycologist John Ramsbottom suggested the term.

Etymology 2

From c(ircle) + line; compare circline.

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