Related Clues:

• Word with "hygiene" or "surgeon"
• A way to think
• Word with "history" or "hygiene"
• Ph.D. exam, perhaps
• Like some graduate tests
• Of a certain Freudian fixation
• Degree candidate's exam type
• Type of surgeon or historian
• Way to read or think
• Via the mouth
• Requiring talking
• Hard exam
• One way to think or read
• Like much family history
• Type of hygiene or history