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extraspectral hue

a hue composed of a mixture of wavelengths, and thus not falling along the visible spectrum (compare spectral color). Two examples are purple and white: Purple is a mixture of long and short wavelengths, whereas white is a mixture of all wavelengths. Also called nonspectral hue.

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Psychology term of the day

February 26th 2024



n. a feeling of intense pleasure and elation, including that experienced in some mystical states, during orgasm, with aesthetic reveries, and in drug-induced states. Such extreme euphoria also may occur in the context of a hypomanic episode or a manic episode. —ecstatic adj.


n. the popular name for MDMA.