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词汇 galactic disc
释义

Definition of galactic disc in English:

galactic disc

(US galactic disk)
noun

  • (Originally) the disc of the galaxy, as represented in the sky by the Milky Way; (later also) the relatively thin, disc-shaped outer part of any spiral galaxy.

Origin

Mid 19th century; earliest use found in The Eclectic Magazine.

Definition of galactic disc in US English:

galactic disc

(US galactic disk)
noun

  • (Originally) the disc of the galaxy, as represented in the sky by the Milky Way; (later also) the relatively thin, disc-shaped outer part of any spiral galaxy.

Origin

Mid 19th century; earliest use found in The Eclectic Magazine.
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