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phenytoin
pheromone
phew
PHI
phi
Phi Beta Kappa
phi effect
phi phenomenon
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phenylalanine
phen·yl·al·a·nine [ fènn'l állə nn, fn'l állə nn ]


noun 
Definition:
 
amino acid: an essential amino acid found in many proteins and converted to a nonessential amino acid tyrosine by the body. C9H11O2N
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