What is the meaning of Phthisic?

A wasting illness of the lungs, such as asthma or tuberculosis; consumption; phthisis.

Any wasting disease.

A person suffering from phthisis.

Any wasting or shrinking of another body part such as, for example, the eye (phthisis bulbi).

Of or relating to phthisis or tuberculosis; tubercular; consumptive.

Source: wiktionary.org