acelom

Absence of a true celom or body cavity lined with mesothelium; typically found in Platyhelminthes (flatworms), which have a syncytial mass of parenchymal cells instead of a true body cavity. ... Origin: G. A-priv. + koiloma, hollow (celom) ... (05 Mar 2000) ...
Found on http://www.encyclo.co.uk/local/20973

acelom

Type: Term Pronunciation: ā-sē′lom Definitions: 1. Absence of a true celom or body cavity lined with mesothelium; typically found in Platyhelminthes (flatworms), which have a syncytial mass of parenchymal cells instead of a true body cavity.
Found on http://www.medilexicon.com/medicaldictionary.php?t=475
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