TOOTHACHE
\tˈuːθe͡ɪk], \tˈuːθeɪk], \t_ˈuː_θ_eɪ_k]\
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By William Dodge Lewis, Edgar Arthur Singer
By James Champlin Fernald
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.