The Collaborative International Dictionary
Partialism \Par"tial*ism\, n. Partiality; specifically (Theol.), the doctrine of the Partialists.
Wiktionary
n. 1 partiality; specifically in theology the doctrine of the Partialists. 2 (context psychiatry English) The sexual attraction to specific parts of the body.
Wikipedia
Partialism is sexual interest with an exclusive focus on a specific part of the body other than the genitals. Partialism is categorized as a fetishistic disorder in the DSM-5 of the American Psychiatric Association only if it causes significant psychosocial distress for the person or has detrimental effects on important areas of their life. In the DSM-IV, it was considered a separate paraphilia ( not otherwise specified), but was merged into fetishistic disorder by the DSM-5. Individuals with partialism sometimes describe the anatomy of interest to them as having equal or greater erotic attraction for them as do the genitals.
Partialism occurs in heterosexual, bisexual, and homosexual individuals. The foot is considered one of the most common partialisms.