'Strengthening plaster' definitions:

Definition of 'Strengthening plaster'

From: GCIDE

Strengthening \Strength"en*ing\, a. That strengthens; giving or increasing strength. -- {Strength"en*ing*ly}, adv. [1913 Webster]
Strengthening plaster (Med.), a plaster containing iron, and supposed to have tonic effects. [1913 Webster]