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Kallikak

[ kal-i-kak ]
/ ˈkæl ɪˌkæk /
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noun

the fictitious name of an actual family that was the focus of a sociological study: one branch of feeble-minded descendants were mostly social degenerates, while another branch with descendants of normal intelligence were mostly successful.
Compare Jukes.

Origin of Kallikak

< Greek kalli- calli- + kak- (see caco-)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for kallikak

  • The studies of the Edwards family on one hand and the so-called Kallikak family on the other, point to the same conclusion.

    How to Teach|George Drayton Strayer and Naomi Norsworthy
  • Kallikak family, results of environment rather than heredity shown by, 249.

  • I have finished the Kallikak family and I am bursting with talk.

    Dear Enemy|Jean Webster
  • If you are really hurt, I will read the Kallikak book; but I must tell you that you are working me to death.

    Dear Enemy|Jean Webster