Main Entry: li·bi·do

Pronunciation: \lə-ˈbē-(ˌ)dō also ˈli-bə-ˌdō\

Function: noun

Inflected Form(s): plural li·bi·dos

Etymology: New Latin libidin-, libido, from Latin, desire, lust, from libēre to please — more at love

Date: 1909

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