Answer: plastrons

AnswerCrossword Clue
plastronsA large pad worn by a fencer to protect the chest
plastronsPLASTRON, a part of the shell of a turtle, also PLASTRUM
plastronsA similar ventral plate in some invertebrate animals
plastronsA lancer's breast covering
plastronsA man's starched shirtfront without pleats
plastronsThe part of a tortoise's or turtle's shell forming the underside
plastrons(in an aquatic insect) A patch of cuticle covered with hairs that retain a thin layer of air, acting like a gill for breathing under water
plastronsAn ornamental front of a women's bodice or shirt consisting of colorful material with lace or embroidery, fashionable in the late 19th century