Within The Body, Inside The Body
noun, の adjective
Something that's inside your body... hmm, could be a lot of things, but we can generalize and just say it's internal.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
Water comes out of the body no matter what.
It seems that a virus has entered the body.
I feel like the alcohol content in the body is lacking.