Definition of Ptolemaist in US English:

Ptolemaist

noun

History Of Science
  • An advocate of the Ptolemaic system of astronomy; = "Ptolemaic".

Origin

Late 17th century; earliest use found in John Flamsteed (1646–1719), astronomer. From ptolema- + -ist.

Pronunciation

Ptolemaist

/tɒləˈmeɪɪst/