operandum

English

Etymology

From Latin operandum. Doublet of operand.

Noun

operandum (plural operanda)

  1. A lever, key or device installed in an operant chamber, upon which the "subject" exerts its responses. Sometimes referred to as a manipulandum. In the prototypical operant conditioning experiment, a rat (the subject) presses upon a lever (the operandum) which triggers the delivery of food (the reward or reinforcer).

Latin

Participle

operandum

  1. inflection of operandus:
    1. nominative/accusative/vocative neuter singular
    2. accusative masculine singular
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