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spiny mouse
spiracle
spiraea
spiral
spiral binding
spiral galaxy
spiral of Archimedes
spiral staircase
spiran
spirant
spire (1)
spire (2)
spirea
spirelet
spirillum
Spirit
spirit
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spiran
spi·ran [ sp ràn ] (plural spi·rans)


noun 
Definition:
 
chemistry 
Same as  spiro compound
[Early 20th century. < German Spiran< Latin spira (see spire2)]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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