nephridiopore


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nephridiopore

[nə′frid·ē·ə‚pȯr]
(invertebrate zoology)
The external opening of a nephridium.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Fertilized eggs are extruded through the nephridiopores into the burrow space, from which they are expelled to complete their development in the water column.