Definition of lucid adjective from the Oxford Advanced Learner's Dictionary

     

    lucid

     adjective
    adjective
    BrE BrE//ˈluːsɪd//
     
    ; NAmE NAmE//ˈluːsɪd//
     
     
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  1. 1clearly expressed; easy to understand synonym clear a lucid style/explanation
  2. 2able to think clearly, especially during or after a period of illness or confusion In a rare lucid moment, she looked at me and smiled.
  3. Word Origin late 16th cent. (originally meaning bright or luminous): from Latin lucidus (perhaps via French lucide or Italian lucido) from lucere ‘shine’, from lux, luc- ‘light’.Extra examples He gave a very lucid account of the events. It was a lucid account of the main facts of the case. She writes in a very lucid style.
See the Oxford Advanced American Dictionary entry: lucid