Definition, Meaning & Synonyms
plastron
noun
/ˈplæs.trən/

Definition
A plastron is a flat, bony plate that can be found on the underside of a tortoise or turtle’s shell.

Examples
- The tortoise tucked its head and legs inside its shell, hiding beneath the sturdy plastron.
- A turtle’s plastron may vary in color and pattern depending on the species.
- The scientist studied the plastron of the ancient turtle to understand its habitat better.

Meaning
It refers specifically to the lower part of a turtle or tortoise’s shell, providing protection and support.

Synonyms
- underside
- belly
- shell bottom