骨髄

Reading

Kana: こつずい

Romaji: kotsuzui

Definitions

noun

adj-no

1

bone marrow; medulla

2

true spirit; one's mind

Kanji

骨

Readings: コツ、 ほね

Meanings: skeleton, bone, remains, frame

髄

Reading: ズイ

Meanings: marrow, pith, essence