English Words Starting With E

• exchequer

  nounC1/C2
  /ɪksˈtʃɛkə/The British government department responsible for collecting revenue and managing public finances; historically, a royal or national treasury.
• excide

  verbverb-transitiveVery Rare / Archaic / Technical
  /ɪkˈsʌɪd/To cut out; to remove by cutting.
• excimer

  nounC2/Highly Specialized
  /ˈɛksɪmə/A short-lived dimeric or heterodimeric molecule formed from two species, at least one of which is in an excited electronic state, which dissociates upon returning to the ground state.
• excipient

  nounC2
  /ɪkˈsɪp.i.ənt/An inactive substance that serves as the vehicle or medium for a drug or other active ingredient in a formulation.
• exciple

  nounExtremely low / Technical jargon
  /ˈɛksɪp(ə)l/A specialized term in lichenology referring to the rim or margin of a fungal apothecium (spore-producing structure) that surrounds the spore-bearing layer.
• excipulum

  nounVery Low
  /ɛkˈsɪpjʊləm/The cup-shaped or saucer-like structure that supports the spore-producing layer in certain fungi, particularly in lichens and some ascomycetes.
• excircle

  nounVery Rare
  /ˈɛkssɜːkəl/A circle that is tangent to one side of a triangle and to the extensions of the other two sides.
• excise

  nounverb-transitiveC1
  Noun: /ˈɛksaɪz/; Verb: /ɛkˈsaɪz/An indirect tax levied on certain goods, especially manufactured goods, or on licenses for certain activities.
• excised

  adjectiveverbC1
  /ɛkˈsaɪzd/to have been cut out or removed, especially by cutting.
• exciseman

  nounLow
  /ˈɛksʌɪzman/A government official whose job is to collect excise taxes and prevent smuggling.
• excision

  nounLow frequency (C1/C2 level); primarily used in formal, medical, literary, or technical contexts.
  /ɛkˈsɪʒ.ən/The act of cutting something out, especially as a surgical operation or the removal of a part.
• excitability

  nounLow
  /ɪkˌsaɪ.təˈbɪl.ə.ti/The quality or state of being easily excited, stimulated, or emotionally aroused.
• excitant

  adjectivenounLow
  /ˈɛksɪt(ə)nt/A substance or agent that stimulates or increases physiological or nervous activity.
• excitation

  nounC1
  /ˌɛksɪˈteɪʃən/The act or state of being excited, aroused, or stimulated; a state of heightened energy, emotion, or activity.
• excite

  verbverb-transitiveB1
  /ɪkˈsaɪt/to cause strong feelings of enthusiasm and eagerness in someone.
• excited state

  nounB2
  /ɪkˈsaɪtɪd steɪt/A condition of heightened energy, arousal, or enthusiasm.
• excitement

  nounB2
  /ɪkˈsaɪt.mənt/A feeling of great enthusiasm, eagerness, or emotional arousal.
• exciter

  nounC1
  /ɪkˈsaɪtə(r)/A person, device, or thing that causes excitement, stimulates activity, or arouses strong feelings.
• exciter lamp

  nounVery Low
  /ɪkˈsaɪ.tə ˌlæmp/A specific type of small, high-intensity lamp (often a halogen or discharge lamp) used to generate light in specialized optical or projection equipment.
• exciton

  nounC2
  /ˈɛksɪtɒn/A bound electron-hole pair in a semiconductor or insulator, formed when an electron is excited into the conduction band, leaving a positively charged hole behind.

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