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 WordNet Dictionary |
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| | Definition: | |
- [n] the cardinal number that is the sum of one and one and one
- [adj] being one more than two
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| | Synonyms: | | cardinal, deuce-ace, iii, III, leash, tercet, ternary, ternion, terzetto, three, three, threesome, tierce, trey, triad, trine, trinity, trio, triplet, troika |
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| | See Also: | | digit, figure |
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| Biology Dictionary |
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- An amino acid derived from the amino acid tyrosine. It is formed as the first intermediate in the production of dopamine, a neurotransmitter.
- A hormonelike substance with the chemical formula C8H11NO2. It is found in the nervous system as an important neurotransmitter, or substance which transmits nerve signals from neuron to neuron. It is also an intermediate in the productions of the hormones epinephrine and norepinephrine.
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| | Synonyms: | | 4-dihydroxyphenylalanine, 4-dihydroxyphenylethylamine, dopa, dopamine |
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