The PhD is a doctoral degree, specifically called a "doctor of philosophy" degree. This is misleading because PhD holders are not necessarily philosophers (unless they earned their degree in philosophy!). That said, PhD recipients are able to engage in thought experiments, reason about problems, and solve problems in sophisticated ways.
Doctoral Programs in Thomas Street in Ireland
The PhD through practice entails a practitioner producing a body of work within a critically reflective frame of enquiry to extend and innovate an area of design practice.