[ the reassurance is appreciated. she would certainly hate to inform someone she had come to like as much as the captain that he was prying too much. that would lead her down the path of closure and, for once, she doesn't want that. ]
An Abnormal is any creature with a mutated genetic structure, some ability that isn't commonly accepted as "normal" for its species. [ the "abnormal" range is large and she's known many animal species as well as humanoid ones. ] We haven't yet made contact with alien species, though I would imagine they have their own set of rules regarding what is normal and what isn't. If they would need our help, and assuming the Network is alive and well enough, we would willingly give it.
[ she's assuming she'll live up to picard's timeline, if not well beyond it. ]
Are alien species common in your time? [ seeing as he's from well into her future, she wouldn't be surprised. even so, she's curious. ]