from The Century Dictionary.
- An order of isopleurous gastropods, exhibiting bilateral symmetry and metameric segmentation.
from the GNU version of the Collaborative International Dictionary of English.
- noun plural (Zoöl.) See
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun small class of marine mollusks comprising the chitons; sometimes considered an order of the subclass Amphineura
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