noun \ˈklīn\

Definition of CLINE

:  a gradient of morphological or physiological change in a group of related organisms usually along a line of environmental or geographic transition
clin·al \ˈklī-nəl\ adjective
clin·al·ly \-nə-lē\ adverb

Origin of CLINE

Greek klinein
First Known Use: 1938


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