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流星塵 (ryuuseijin) Japanese meaning: micrometeorite | Kotomora

流りゅう星せい塵じん

りゅ

う

せ

い

じ

ん

Meanings

1

micrometeorite

Scientific term for tiny extraterrestrial particles that enter Earth's atmosphere; often discussed in astronomy and planetary science.

流りゅう星せい塵じんは大たい気き圏けんに突とつ入にゅうしても燃もえ尽つきずに

地ち

表ひょう

に

到とう

達たつ

する

こと

が

ある

。

Micrometeorites can reach the Earth's surface without burning up upon entering the atmosphere.

Kanji

流current, a sink, flow
星star, spot, dot
塵dust, trash, garbage

Related words

流りゅう星せい
流星 (meteor) refers to the visible streak of light; 流星塵 is the actual tiny particle, often too small to see as a meteor.
隕いん石せき
隕石 (meteorite) is a larger object that survives atmospheric entry and hits the ground; 流星塵 is microscopic dust.

Built from

流りゅう星せい+塵じん

Etymology

Compound of 流星 (meteor) and 塵 (dust, tiny particle). The term directly describes the concept of meteoritic dust.