hypermobile testes

testes that move between the scrotum and the abdominal cavity, usually because of an inguinal hernia that has not been corrected. The testes may descend into the scrotum when the environment is warm, as when taking a hot bath, but retract into the abdominal cavity when the body is exposed to cold.

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Psychology term of the day

January 18th 2025

law of contrast

a principle of association stating that opposites are reminders of one another: encountering or thinking about one (e.g., a snow-covered field) tends to bring to mind the other (e.g., a sunny beach). Initially proposed as a distinct, essential concept in associationism, the law of contrast later came to be viewed as a special case of the law of contiguity.