Japanese edit

Kanji in this term
かん
Grade: S
じん
Grade: S
on’yomi
For pronunciation and definitions of 肝腎 – see the following entry.
肝心かんじん
[adjective] (figurative) vital, essential, main
[noun] (figurative) that which is essential or fundamental
(This term, 肝腎, is an alternative spelling of the above term.)