This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

天然放射性同位体

Reading

Kana: てんねんほうしゃせいどういたい
Romaji: tennenhoushaseidouitai
Kana
Romaji

Definition

1

natural radioisotope

Kanji

Readings: テン、 あまつ、 あめ、 あま-
Meanings: heavens, sky, imperial
Readings: ゼン、 ネン、 しか、 しか.り、 しか.し、 さ
Meanings: sort of thing, so, if so, in that case, well
Readings: ホウ、 はな.す、 -っぱな.し、 はな.つ、 はな.れる、 こ.く、 ほう.る
Meanings: set free, release, fire, shoot, emit, banish, liberate
Readings: シャ、 い.る、 さ.す、 う.つ
Meanings: shoot, shine into, onto, archery
Readings: セイ、 ショウ、 さが
Meanings: sex, gender, nature
Readings: ドウ、 おな.じ
Meanings: same, agree, equal
Readings: イ、 くらい、 ぐらい
Meanings: rank, grade, throne, crown, about, some
Readings: タイ、 テイ、 からだ、 かたち
Meanings: body, substance, object, reality, counter for images