noun Botany.
a layer of modified tissue consisting of cells that are thickened at the angles and usually elongated.

1825–35; < Neo-Latin < Greek kóll(a) glue + énchyma contents (en- en-2 + chy-, stem of cheîn to pour + -ma noun suffix denoting result of action)

collenchymatous [kol-uhn-kim-uh-tuhs] , collenchymatic [kuh-leng-kuh-mat-ik] , adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
collenchyma (kəˈlɛŋkɪmə)
a strengthening and supporting tissue in plants, consisting of elongated living cells whose walls are thickened with cellulose and pectins
[C19: New Latin, from Greek kolla glue + enkhuma infusion]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
collenchyma  [%PREMIUM_LINK%]     (kə-lěng'kə-mə)  Pronunciation Key 
A supportive tissue of plants, consisting of elongated living cells with unevenly thickened, nonlignified walls. Collenchyma cells remain alive at maturity. Compare parenchyma, sclerenchyma.

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