noun

• (countable) Any of several small turtles of the families Emydidae and Geoemydidae found throughout the world.
• (countable, obsolete) Any turtle.
• (countable, obsolete) Any of several small turtles native to North America that live in brackish or fresh water, especially the diamondback terrapin (Malaclemys terrapin).
• (uncountable, obsolete) The flesh of such a turtle used as food.