Pronunciation: /ɪkˈsʌɪtəb(ə)l, ɛk-/
adjective
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1responding too readily to something new or stimulating; easily excited: a rather excitable young man
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2(of tissue or a cell) responsive to stimulation: these alkaloids act on nerve cells to make them more excitable

Derivatives
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Pronunciation: /-ˈbɪlɪti/
noun -
adverb