mind expansionn.
/ˈmʌɪnd ᵻkˌspanʃn/, /ˈmʌɪnd ɛkˌspanʃn/, U.S. /ˈmaɪnd ɪkˌspænʃ(ə)n/, /ˈmaɪnd ɛkˌspænʃ(ə)n/ The action of expanding or (apparently) extending the capabilities of the mind. Also: spec. the action of experiencing the effects of (esp. psychedelic) drugs.
ΚΠ
1968 Jrnl. Human Health & Social Behavior 9 156 The terms reflect..a prominent value tension within the hippie subculture between contemplative, inwardly-directed forms of ‘mind-expansion’ and more hedonistically oriented forms of sensual excess.
1971 Village Voice (N.Y.) 1 June 26/3 (advt.) For information about this exciting new field in anxiety reduction, muscle relaxation and mind expansion, attend our free lecture and group discussion.
1993 Spy Oct. 35/2 Though students still report rooms crowded with bongs and group acid trips on Halloween, most schools are vigilant in crushing such mind expansion.
2000 Scotsman 22 July (S2) 2/3 In other areas, the culture seems to have rolled back from the world of ‘hip’ which Mailer chronicled. Mind-expansion has given way to the war on drugs.
This is a new entry (OED Third Edition, March 2002; most recently modified version published online March 2022).
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n.1968