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infusorial earth
infusorial earth (ˌɪnfjʊˈzɔːrɪəl) n (Geological Science) another name for diatomaceous earth See diatomiteinfusorial earth
infusorial earth[‚in·fyə′sȯr·ē·əl ′ərth] (geology) Formerly, and incorrectly, a soft rock or an earthy substance composed of siliceous remains of diatoms. MedicalSeeearth |