Cheiron

UK: /ˈkaɪrɒn/ US: (kī′ron)

WordReference Random House Unabridged Dictionary of American English © 2026

Chei•ron  (kī′ron), n. [Class. Myth.]

1. Mythology Chiron.

Collins Concise English Dictionary © HarperCollins Publishers::

Cheiron / ˈkaɪrɒn -rən/ noun

1. a variant spelling of Chiron

WordReference Random House Unabridged Dictionary of American English © 2026

Chi•ron  (kī′ron), n. 

1. Mythology [Class. Myth.] a wise and beneficent centaur, teacher of Achilles, Asclepius, and others.
2. Astronomy an asteroid located between Saturn and Uranus, about 100 mi. (160 km) in diameter: discovered in 1977.

Also, Cheiron. 

Collins Concise English Dictionary © HarperCollins Publishers::

Chiron, Cheiron / ˈkaɪrɒn -rən/ noun

1. a wise and kind centaur who taught many great heroes in their youth, including Achilles, Actaeon, and Jason
2. a minor planet, discovered by Charles Kowal in 1977, revolving round the sun between the orbits of Saturn and Uranus