OBSIDIAN
\ɒbsˈɪdi͡ən], \ɒbsˈɪdiən], \ɒ_b_s_ˈɪ_d_iə_n]\
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By Princeton University
By DataStellar Co., Ltd
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.