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gradient

n.

1. the slope of a line or surface.

2. a measure of the change of a physical quantity (e.g., temperature).

3. in motivational psychology, a graduated change in the strength of a drive resulting from a change in the environment, such as time interval, distance from a situation, and degree of conflict. See also approach gradient; avoidance gradient.

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Psychology term of the day

November 6th 2024

salivary gland

salivary gland

any of several glands located in the wall of the mouth that secrete a fluid (saliva) containing the enzyme gamma-amylase (ptyalin). The major salivary glands are the paired parotid, submaxillary, and sublingual glands; smaller glands are scattered over the cheeks and tongue. See also salivation.