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TESOL
TESSA
tessellate
tessera
tesseract
tessitura
Test.
test (1)
test (2)
test.
Test Act
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test (2)
test [ test ] (plural tests)


noun 
Definition:
 
outer covering: the hard outer covering or shell of some invertebrates, e.g. mollusks and crustaceans
[Mid-16th century. < Latin testa "tile, shell"]
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