Definition of uniprocessor in US English:

uniprocessor

noun

Computing
  • A system containing only one processor; the processor used in such a system. In early use frequently attributive.

Origin

1960s; earliest use found in Proceedings of the AFIPS Conference. From uni- + processor.

Pronunciation

uniprocessor

/ˌjuːnɪˈprəʊsɛsə/