Body
Trunk, Torso
noun, の adjective
Your torso body is the body area that's your torso. It's your body and trunk and torso, depending on what kind of body you have.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
君は今までみた中で一番胴体が長いよ。
You have the longest torso I’ve ever seen.