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Use "anionic" in a sentence
"Washing-up liquids are often of the 'anionic' types and are likely to interfere with the dyeing process."
"[41] is presumably due to the binding of ACh at the peripheral "anionic" site."
"Besides avoiding the small amino acids, from your Venn diagram, they look to cover most options to me (the only obvious ommision would be glutamate, E, for an example of a anionic (negative) amino acid)."