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infra-
infra dig
infraclass
infracostal
infract
infraction
infrahuman
infrangible
infraorder
infrared
infrared astronomy
infrared photography
infrared spectroscopy
infrasonic
infrasound
infrastructure
infrequent
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infusorial earth
in·fu·so·ri·al earth [ in fyoo zàwree əl úrth ]


noun 
Definition:
 
minerals 
Same as  diatomaceous earth (sense 2)

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