noun
subliminal tape
A cassette tape or audio recording containing subliminal messages, often marketed for self-improvement or language learning in the late 20th century. Now largely obsolete.
90年代には、サブリミナルテープが自己啓発グッズとして流行した。
In the 1990s, subliminal tapes were popular as self-improvement items.
Variant with interpunct; less common in running text.
Refers to the subliminal effect or technique itself, not the physical tape medium.
From English 'subliminal tape'.