A terminal research degree and one of the highest doctorates awarded by a university.

plural of Doctor of Philosophy

(historical) The objective study of nature in the widest sense; science; (later especially) physics.

(philosophy) Any of various philosophical traditions strongly influenced by certain 19th and 20th century philosophers from mainland Europe, such as Hegel.

(philosophy) A style of philosophy that came to dominate English-speaking countries in the 20th century.

(philosophy, uncountable) The area of philosophy which studies the nature and functions of the mind, thought, and consciousness, with attention to such topics as perception, reasoning, belief, memory, will, and identity.

The philosophical system introduced by Herbert Spencer, conceived as a fusion of the different sciences into a whole.

(computing) An approach to software development based on the experience of developing the Unix operating system, emphasizing the creation of minimalist, modular, extensible code that can be easily maintained and repurposed.

A sentimental belief system, ignoring harsh realities.

Synonym of philosophia perennis