Sexual urge.
The psychic drive or energy usually associated with the sexual instinct. (Sexual is used here in the broad sense to include pleasure and love-object seeking.)
Conscious or unconscious sexual desire.
The psychic energy of the id. Viewed by Freudian psychologists as sexual in nature.
Sexual drive; in psychoanalytic theory, one of the major drives that is a source of energy.
The psychological, physical, and emotional energy that comes from instinctual drives, particularly sexual. The level of libido can vary with mood (such as anxiety and sadness), physical health, hormonal changes (such as during pregnancy and menstruation), and emotional states (such as anticipation, pursuit, or fantasy).
The term is often used to refer to the intensity of sexual desires. In psychoanalytic theory, the libido (like the death instinct) is one of the fundamental sources of energy for all mental life. The normal course of development can be altered by fixation at one level and by regression.
The natural desire for sexual intercourse. Lack of desire or diminished libido may occur in any general medical illness, as well as in endocrine diseases, where there is a lack of production of the sex hormones. The strength or weakness of the sexual drive may be associated with psychiatric diseases; it may also be the result of certain drugs. It must be distinguished from male impotence, where the desire for intercourse is normal but the performance is defective due to inability to achieve or maintain an erection.
The instinctual energy or drive associated with sexual desire.
Sexual appetite. A decrease in libido can serve as an indication of various physical ailments, psychological challenges like depression, and issues related to drug or alcohol abuse.