Even when they would be considered different species, a humanoid lizard from others humanoids, all the humanoid intelligent species are considered people with the same dignity and rights. So technically it shouldn't be considered cannibalism from a scientific point of view, but how societies judge people sometimes differ from science.
So, would it be considered cannibalism by other humanoid lizards if a comrade eats some other humanoids like elfs or orcs?
take in acount this:
- It's not about if it is something good or bad, as it envolve killing it would be bad in the majority of cases, just if it would be considered cannibalism.
- It doesn't matter the opinion of the other humanoids about it, obiusly the people being eaten are highly biased to have a relevant opion on the term that should be used.