CONTRA
\kˈɒntɹə], \kˈɒntɹə], \k_ˈɒ_n_t_ɹ_ə]\
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By Smith Ely Jelliffe
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A Latin preposition, used in composition, which signifies, against.
By Thomas Sheridan
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.