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petitio principii
petition
petits pois
petnapping
Petra
Petrarchan sonnet
petrel
petri-
Petri dish
petrifaction
Petrified Forest National Park
petrify
Petrine
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petrochemical
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Petri dish
Pe·tri dish [ ptree dìsh ] (plural Pe·tri dish·es)


noun 
Definition:
 
dish for growing cultures: a shallow flat-bottomed dish with a loose cover, used especially to grow bacterial cultures in the laboratory
[After Julius Petri (1852-1892), German bacteriologist]
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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