The ventral part of the shell of a turtle

c. 1500, from Middle French plastron "breastplate," from Italian piastrone, augmentative of piastra "breastplate, thin metal plate" (see piaster). As an animal part, from 1813; as [..]

an array of hairs or bumps used to trap air next to the body of some aquatic insects where it forms a physical gill. Read more on: Plastron

Ventral body shield of turtles; structure in corresponding position in certain arthropods; thin film of gas retained by epicuticle hairs of aquatic insects. plate tectonics

The plastron is the nearly flat part of the shell structure of a turtle or tortoise, what one would call the belly, similar in composition to the carapace; with an external layer of horny material div [..]

The plastron is the nearly flat part of the shell structure of a turtle or tortoise, what one would call the belly

(n) the ornamental front of a woman's bodice or shirt(n) the front of man's dress shirt(n) a metal breastplate that was worn under a coat of mail(n) a large pad worn by a fencer to protect t [..]

The shell covering the underside (bottom) of a turtle or other animal.

The lower part of a tortoise or turtle shell.

The lower shell of a turtle.

in aquatic insects, an air bubble carried by an insect that absorbs oxygen from the water, never decreases in size, and allows the insect to remain submerged nearly indefinitely

a specialized gill of minute hairs allowing a thin film of air to cover the body and enhance oxygen exchange with water in aquatic conditions; many insects possess plastrons, even some considered prim [..]

The lower part of a turtle’s shell.

a half-jacket with no underarm seam, worn for extra protection on the sword arm under the fencing jacket; also a padded over-jacket worn by a fencing coach when giving individual training

The lower part of a tortoises or turtles shell.

The nearly flat part of the shell structure of a tortoise or other animal, similar in composition to the carapace. (fencing) A half-jacket worn under the jacket for padding or for safety. An orn [..]