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spiraea
spiral
spiral binding
spiral galaxy
spiral of Archimedes
spiral staircase
spiran
spirant
spire (1)
spire (2)
spirea
spirelet
spirillum
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spirits of hartshorn
spir·its of harts·horn [ spìrrəts əv hrts hàwrn ]


plural noun 
Definition:
 
ammonium hydroxide: ammonium hydroxide ( archaic )

[Because hart's horn was an early source of ammonia]
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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