Breastband
Breast´band`
(~bănd`)n. | 1. | (Naut.) 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. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.