hedonic adjective & noun. [hi:'dɒnɪk, hɛ-] M17.
[Greek hēdonikos, formed as HEDONISM: see -IC.]
A. adjective.
1. Of or pertaining to pleasure; (chiefly Psychology) of, pertaining to, or involving pleasurable or painful sensations or feelings, considered as affects. M17.
hedonic tone the degree of pleasantness or unpleasantness associated with an experience or state, esp. as referred to a continuum extending from pleasure to pain.

2. Zoology. Designating or relating to glands in reptiles and amphibians which serve to attract members of the opposite sex for mating. E20.
b. noun.
1. A Cyrenaic. Only in L17.

2. In pl. The science of pleasure; that part of ethics which refers to pleasure. Now rare. M19.

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