| Ottoson potential | <investigation> An electronegative wave of potential occurring on the surface of the olfactory epithelium in response to stimulation by an odour. Synonym: osmogram, Ottoson potential. (05 Mar 2000) |
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| ottrelite | <chemical> A micaceous mineral occurring in small scales. It is characteristic of certain crystalline schists. Origin: From Ottrez, on the borders of Luxembourg. Source: Websters Dictionary (01 Mar 1998) |