chelirubine
(organic chemistry) a positive organic ion, with chemical formula C₂₁H₁₆NO₅⁺, having six interlinked carbon rings (including three aromatic benzene rings); commonly formed in combination with a negative halide ion, such as chelirubine chloride.
(zoology) The reproductive zooids of a hydroid colony, collectively. / A synonym for sex chromosome.
simple past tense and past participle of keep shtum
(transitive) To introduce again.
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