cline (n.)

1938, in biology, "a graded series of differences within a species," a back-formation from incline or from a Latinized form of Greek klinein "to slope, to lean" (from PIE root *klei- "to lean"). Earlier, but now obsolete, was a verb cline, from Middle English clinen "to bend, bow," from Old French cliner, from Latin clinare.

updated on February 26, 2021

Definitions of cline from WordNet

Cline (n.)
American geneticist who succeeded in transferring a functioning gene from one mouse to another (born in 1934);
Synonyms: Martin Cline
Etymologies are not definitions. From, not affiliated with etymonline.