apogalacteum

noun

ap·​o·​ga·​lac·​te·​um

ˌapəgəˈlaktēəm,

-kshēəm;

-ˌgaˌlakˈtē-

plural -s

: the point of the hypothetical orbit of the sun or another star at which it is most remote from the galactic nucleus

Word History

Etymology

New Latin, from apo- + -galacteum (from Greek galakt-, gala milk)

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