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tertiary
tertiary care
tertiary color
tertiary education
tertiary industry
tertiary sector
tertiary syphilis
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Terylene
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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"]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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