SIRENIA
\sa͡ɪ͡əɹˈiːni͡ə], \saɪəɹˈiːniə], \s_aɪə_ɹ_ˈiː_n_iə]\
Definitions of SIRENIA
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An order of heavy-bodied, slow-moving, completely aquatic, herbivorous mammals. The body is fusiform, plump, and hairless, except for bristles on the snout. Hindlimbs are absent, the forelimbs are modified to flippers, and the tail is a horizontal fluke. (From Scott, Concise Encyclopedia Biology, 1996)
By DataStellar Co., Ltd
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Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.