• (a.) Having phthisis, or some symptom of it, as difficulty in breathing.
Phthis'ick·y adjective Having phthisis, or some symptom of it, as difficulty in breathing. 
phthisical, phthisicky Pertaining to, of the nature of, or affected by phthisis (disease characterized by the wasting away or atrophy of the body or a part of the body).phthisicky Having phthisis, or some symptom of it; such as, having difficulty in breathing.