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Trojan asteroid

Syllabification: (Tro·jan as·ter·oid)
Definition of Trojan asteroid

noun

  • an asteroid belonging to one of two groups that orbit the sun at the same distance as Jupiter, at the Lagrangian points roughly 60 degrees ahead of it and behind it.

Origin:

early 20th century: so named because the first asteroids discovered were named after heroes of the Trojan War

Trojan asteroid in other Oxford dictionaries

Definition of Trojan asteroid in the British & World English dictionary

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