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benumb
benz-
benzaldehyde
benzalkonium chloride
benzanthrone
benzathine penicillin
Benzedrine
benzene
benzene ring
benzine
benzo-
benzoate
benzocaine
benzodiazepine
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benthos
ben·thos [ bén thòss ]


noun 
Definition:
 
organisms at sea or lake bottom: the animals and plants that live on or in the sediment at the bottom of a sea, lake, or deep river
[Late 19th century. < Greek, "depth of the sea"]
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