The definition of libido is the emotional energy of biological desires, especially sexual desire.
(noun)An example of libido is the urge to engage in sex.
See libido in Webster's New World College Dictionary
noun
Origin: ModL < L, pleasure, wantonness < libet, lubet, it pleases: for IE base see love
See libido in American Heritage Dictionary 4
noun pl. li·bi·dos
Origin:
Origin: Latin libīdō, desire; see leubh- in Indo-European roots
.Related Forms:
Learn more about libido