"A person who is trained in the preparation of medicines." (CD)
See also: https://dictionary.cambridge.org/us/dictionary/english/pharmacist
The graph displays the other subjects mentioned on the same pages as the subject "Medical Profession--Pharmacists". If the same subject occurs on a page with "Medical Profession--Pharmacists" more than once, it appears closer to "Medical Profession--Pharmacists" on the graph, and is colored in a darker shade. The closer a subject is to the center, the more "related" the subjects are.