autopotamic

[aw-toh-puh-tam-ik]

adjective

(of an organism) living or growing only in flowing freshwater streams.

Origin:
auto-¹ + potamic

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Autopotamic has a plethora of syllables.

So is dichlorodiphenyltrichloroethane. Does it mean:

a white, crystalline, water-insoluble, powerful high explosive, C3H6N6O6, used chiefly in bombs and shells.

a white, crystalline, water-insoluble solid, C14H9Cl5, usually derived from chloral by reaction with chlorobenzene in the presence of fuming sulfuric acid: used as an insecticide and as a scabicide and pediculicide: agricultural use prohibited in the U.S.

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autopotamic

au·to·po·tam·ic