'Breastband' definitions:

Definition of 'Breastband'

From: GCIDE

Breastband \Breast"band`\ (-b[a^]nd`), n. A band for the breast. Specifically: (Naut.) A band of canvas, or a rope, fastened at both ends to the rigging, to support the man who heaves the lead in sounding. [1913 Webster]