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aerenchyma
aer·en·chy·ma
[
er réngkəmə
]
noun
Definition:
tissue that makes water plants float:
the spongy tissue in some water plants that keeps them afloat and helps in the exchange of gases
[
Late 19th century. < Greek
aēr
"air" +
egkhuma
"infusion"
]
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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