Is Seshomaru a half-demon,or not?

Question

This is something i've been wondering for quite some time now.I mean he is Inuyasha's brother ,right?Or is Seshomaru only his half-brother?

Answer 1

Sesshomaru is a full demon - both his mother & father were demons. Inuyasha is a half demon because his mother was human. They both shared the same father.

Info on Sesshomaru :
http://en.wikipedia.org/wiki/Sesshoumaru

Answer 2

Sesshomaru is the youkai son of the powerful Inu no Taishou. Since Inu no Taishou is considered to be a daiyōkai (great yōkai), Sesshomaru is a daiyoukai himself. He is stoic and hard to read. He rarely smiles, and when he does, it's usually not a good thing; as once Jaken begged Sesshomaru to beat him rather than to smile because it was Sesshomaru’s smile that he feared most. Sesshomaru believes that struggle is the only way for survival and mostly throughout the series shows his contempt for InuYasha, his half brother. So Sesshoumaru is a full-demon. His parents were both demon while inu yasha's mother was not a demon, they have the same father.

Answer 3

He's a full demon.