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noun
1.
any gastropod mollusk of the order Opisthobranchia, as the sea slugs, sea butterflies, and sea hares, characterized by a vestigial or absent mantle and shell and two pairs of tentacles.
adjective
2.
of or pertaining to the opisthobranches.
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Opisthobranch
is always a great word to know.
So is ort. Does it mean:
| a gadget; dingus; thingumbob. |
| a scrap or morsel of food left at a meal. |
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Link To opisthobranch
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Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Encyclopedia Britannica
Encyclopedia
opisthobranch
any marine gastropod of the approximately 2,000 species of the subclass Opisthobranchia. These gastropods, sometimes called sea slugs, breathe either through gills, which are located behind the heart, or through the body surface. The shell and mantle cavity are reduced or lacking. Larval asymmetry may give way to bilateral symmetry in the adult through a partial untwisting of the embryonic viscera. Reproduction is hermaphroditic-i.e., both male and female reproductive organs occur in one individual.
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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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