plural libidos
Definition of libido
1
: instinctual psychic energy that in psychoanalytic theory is derived from primitive biological urges (as for sexual pleasure or self-preservation) and that is expressed in conscious activity
2
: sexual drive
The drug was used to increase libido.
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Merriam-Webster unabridged
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Time Traveler for libido
The first known use of libido was in 1909
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