洪積層

Reading

Kana: こうせきそう

Romaji: kousekisou

Definition

noun

1

diluvial formation (geol.)

Kanji

洪

Reading: コウ

Meanings: deluge, flood, vast

積

Readings: セキ、 つ.む、 -づ.み、 つ.もる、 つ.もり

Meanings: volume, product (x*y), acreage, contents, pile up, stack, load, amass

層

Reading: ソウ

Meanings: stratum, social class, layer, story, floor