Explore Words Kanji Grammar Guides

Copyright © 2026 Kotomora. All Rights Reserved.

Get the Kotomora apps for iOS and Android.

Explore Words Kanji Grammar Guides About Support Privacy

Copyright © 2026 Kotomora. All Rights Reserved.

放射年代 (houshanendai) Japanese meaning | Kotomora

放ほう射しゃ年ねん代だい

ほ

う

しゃ

ね

ん

だ

い

Meanings

1

radiometric age

Technical term used in geology, archaeology, and related fields for age determined by radiometric dating methods.

この化か石せきの放ほう射しゃ年ねん代だいは約やく1いち万まん年ねん前まえと推すい定ていされ

た

。

The radiometric age of this fossil was estimated to be about 10,000 years.

Kanji

放set free, release, fire
射shoot, shine into, onto
年year, counter for years
代substitute, change, convert

Related words

放ほう射しゃ年ねん代だい測そく定てい
放射年代測定 refers to the dating method itself, while 放射年代 is the resulting age.

Word family

放ほう射しゃ年ねん代だい測そく定てい
radiometric dating

Built from

放ほう射しゃ+年ねん代だい

Etymology

Compound of 放射 (radiation) and 年代 (age, era).