Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Pacceka Brahmā
Pacceka Brahmā:Mention is made in one or two places in the books of Brahmas who are described as Pacceka Brahmā - ; e.g.,Subrahmā,Suddhāvāsa and Tudu.I have not come across any explanation of this term.It may designate a Brahmā who does not live in any recognized Brahmā world,but in a world of his own.