1. (

• plastron ,

) the ornamental front of a woman's bodice or shirt ;

2. (

• plastron ,

) the front of man's dress shirt ;

3. (

• plastron ,

) a metal breastplate that was worn under a coat of mail ;

4. (

• plastron

) a large pad worn by a fencer to protect the chest ;

5. (

• plastron

) (zoology) the part of a turtle's shell forming its underside ;