F
\ˈɛf], \ˈɛf], \ˈɛ_f]\
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By William Hand Browne, Samuel Stehman Haldeman
By James Champlin Fernald
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the sixth letter of the English alphabet, is a labial articulation formed by the passage of breath between the lower lip and the upper incisive teeth. The figure of the letter F is the same as that of the Eolic digamma [F], to which it is also closely related in power. As a contraction it stands for fellow; as a numeral it denotes 40, and with a dash over it, 40,000. In music F is the fourth tone of the model scale. F sharp (F#) is a tone between F and G.
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.