Hybrid

"His kid, all Immortal Ascendants kids, they're all hybrids. Half Human, Half Ascendant. Sure, they have normal Ascendant abilities, but with their Human genes, those abilities are all messed up. Silvester most likely attracted the attention of those mutants himself. They mess everything up, Aubrey. They can’t help it, they aren’t wired like us."

- Malcolm to Aubrey

A Hybrid is a term used to describe children of Immortal Ascendants and Humans.