terrapin

noun

1. (countable)Any of several small turtles of the families Emydidae and Geoemydidae found throughout the world.
2. (countable, obsolete)Any turtle.

   “The third ſervice was made up of a loin of freſh pork with apple-ſauce, a kid ſmothered with onions, and a terrapin baked in the ſhell; […]”

   “The land-turtle, or terrapin, is much better known at Nice, as being a native of this county; yet the beſt are brought from the iſland of Sardinia. The ſoup or bouillon of this animal is always preſcribed here as a great reſtorative to conſumptive patients.”

   “The ancient whale-cry [i.e., "town-ho"] upon first sighting a whale from the masthead, still used by whalemen in hunting the famous Gallipagos terrapin.”

3. (countable, obsolete)Any of several small turtles native to North America that live in brackish or fresh water, especially the diamondback terrapin (Malaclemys terrapin).

   “As to the terrapin, I have not so much to say. The terrapin is a small turtle, found on the shores of Maryland and Virginia, out of which a very rich soup is made. It is cooked with wines and spices, and is served in the shape of a hash, with heaps of little bones mixed through it. […] I must, however, confess that the terrapin for me had no surpassing charms.”

4. (obsolete, uncountable)The flesh of such a turtle used as food.

   “The man who did not eat twice of terrapin would be held in small repute, as the Londoner is held who at a city banquet does not partake of both thick and thin turtle.”