pansexual (adj.)

1926 (pansexualism is from 1917), from pan- + sexual. Originally in reference to the view that the sex instinct plays the primary part in all human activity, mental and physical; Freud's critics held this to be his view, and the word became a term of reproach leveled at early psychology. Meaning "not limited in sexual choice" is attested by 1972. Related: Pansexuality.

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Definitions of pansexual from WordNet

pansexual (n.)
a person who participates in (or is open to) sexual activities of many kinds;