Definition of excite in English:


Line breaks: ex¦cite
Pronunciation: /ɪkˈsʌɪt
, ɛk-/


[with object]
  • 3Produce a state of increased energy or activity in (a physical or biological system): the energy of an electron is sufficient to excite the atom
    More example sentences
    • By giving the vaccine along with another drug that excites the immune system, doctors can teach Bonet's own immune system to fight her cancer.
    • Now, when this wavefront hits a material, some of the wavelets will hit atoms and excite electrons to a higher energy state.
    • External energy pumped into the atoms of the lasing medium excites electrons to higher energy states; returning to their base state, they emit photons.


Middle English (in the sense 'incite someone to do something'): from Old French exciter or Latin excitare, frequentative of exciere 'call out or forth'. sense 1 dates from the mid 19th century.

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