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