meteoroid

Từ điển Oxford Learners Wordfinder Dictionary

noun

(astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere
• Syn:
meteor
• Derivationally related forms:
meteoric (for: meteor)
• Topics:
astronomy, uranology
• Hypernyms:
extraterrestrial object, estraterrestrial body
• Hyponyms:
meteorite, meteor swarm