| osmate | <chemistry> A salt of osmic acid. [Formerly written also osmiate. Source: Websters Dictionary (01 Mar 1998) |
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| osmaterium | Origin: NL, fr. Gr. Smell. <zoology> One of a pair of scent organs which the larvae of certain butterflies emit from the first body segment, either above or below. Source: Websters Dictionary (01 Mar 1998) |