plastron
1. A piece of leather stuffed or padded, worn by fencers to protect the breast.
3. An iron breastplate, worn under the hauberk.
3. (Science: anatomy) The ventral shield or shell of tortoises and turtles. See testudinata.
4. A trimming for the front of a woman’s dress, made of a different material, and narrowing from the shoulders to the waist.
Origin: F. Plastron breastplate, plastron, LL. Plastra a thin plate of metal. See Plaster.
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