Amativeness is an inclination toward love, especially sexual love. It is also a concept in the archaic teachings of phrenology.
Localisation in Phrenology
Amativeness is also a concept of phrenology. It is the faculty concerned with physical love and sexual attraction. When it is strongly developed, it may represent carnality and licentiousness. When underdeveloped: coldness, frigidity, indifference towards the opposite sex.
In phrenology, the locus of amativeness is located on the lower back of the head, behind the ears.
References
Amativeness Wikipedia(Text) CC BY-SA