Definition of Orionid in English:

Orionid

noun

Astronomy
  • Any of an annual shower of meteors which appear to radiate from the constellation Orion during October.

adjective

Astronomy
  • Of or designating an Orionid, or the shower of Orionids.

Origin

Late 19th century; earliest use found in George F. Chambers (1841–1915). From Orion + -id.

Pronunciation

Orionid

/əˈrʌɪənɪd/