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water polo
water power
water purslane
water rat
water-repellent
water right
water sapphire
water scorpion
water seal
water shield
water shrew
water-sick
water sign
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water seal
wa·ter seal (plural wa·ter seals)


noun 
Definition:
 
water that seals pipe: water that lies in a waste pipe and forms a seal that prevents the escape of unpleasant smells
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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