nephrostome

neph·ro·stome

[nef-ruh-stohm]
noun
1.
Zoology. the ciliated opening of a nephridium into the coelom.
2.
Embryology. a similar opening from the coelom into a tubule of the embryonic kidney.

Origin:
1885–90; nephro- + -stome

ne·phros·to·mous [nuh-fros-tuh-muhs] , neph·ro·sto·mi·al, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Nephrostome is always a great word to know.
So is annelida. Does it mean:
cold-blooded aquatic vertebrates with gills, often have fins and elongated body covered with scales
phylum comprised of annelids
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