from the GNU version of the Collaborative International Dictionary of English
- n. a land tortoise or turtle of the genera Cistudo and Emys; -- so named because it can withdraw entirely within its shell, which can be closed by hinged joints in the lower shell. Also, humorously, an exceedingly reticent person.
- n. See under Box, Land, etc.
from The Century Dictionary and Cyclopedia
- n. A tortoise with a hinged plastron which can be so closely applied to the edge of the carapace, when the head, tail, and limbs have been drawn in, that the animal is practically boxed up in the shell; a tortoise of the family Cistudinidœ. Generally called box-turtle in the United States.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. chiefly terrestrial turtle of North America; shell can be closed tightly
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