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Concurrent Range Zone , concurrent range zone toxoid , toxoid (toks-oid) n. a preparation of a toxin that has been rendered harmless by chemical treatment while retaining its antigenic activity. Toxoids a… gramicidin , gramicidin (gram-i-sy-din) n. an antibiotic that acts against a wide range of bacteria. It is used in combination with other antibacterial drugs or s… Activated Charcoal , Charcoal, Activated
Definition
Activated charcoal is pure carbon. It is a fine, black, odorless, and tasteless powder made from wood or other materia… Range , range / rānj/ • n. 1. the area of variation between upper and lower limits on a particular scale: the cost is thought to be in the range of $1-5 mill… Range Zone , range zone Unit of strata defined by the presence and time range of a particular fossil taxon. A range zone comprises the entire vertical and horizon…
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