libido

1. (common usage) Sexual urges or drives.Examples: "Good grief man, control your libido!"Synonyms: horninessAntonyms: frigiditycountableuncountable

2. (psychology) Drives or mental energies related to or based on sexual instincts but not necessarily sexual in and of themselves.Examples: "For Freudians, libido means the desire to "unite and bind" with objects in the world."; "The ego as an organ which seeks to synthesize thoughts in the psyche is said to be driven by libido or eros."Antonyms: destrudo, mortidocountableuncountable

3. (astronomy, archaic or misused, an occasional carry-over from astrology to astronomy) Synonym of albedo in terms of a planet's, such as that of Mars, average surface spectral reflectivity.Synonyms: albedo in terms of a planet's, such as that of Mars, average surface spectral reflectivitycountableuncountable