lucid

Latin lucidus, from lux (“light”) + -idus.

• IPA^(key): /ˈl(j)uːsɪd/

• Audio (Southern England):

  (file)

• Rhymes: -uːsɪd

lucid (comparative lucider or more lucid, superlative lucidest or most lucid)

1. Clear; easily understood.
   • 2014 September 26, Tom Payne, “Sapiens: a Brief History of Humankind by Yuval Noah Harari, review: 'urgent questions' [print version: The story of our species, 27 September 2014, p. R32]”, in The Daily Telegraph (Review)‎^[1]:

     [T]he book, constructed in short, lucid episodes, can be satisfyingly read as a sequence of provocative talks, at once well informed and vatic.

2. Mentally rational; sane.
3. Bright, luminous, translucent, or transparent.
   • 1837, L[etitia] E[lizabeth] L[andon], “The Fête”, in Ethel Churchill: Or, The Two Brides. […], volume III, London: Henry Colburn, […], →OCLC, page 57:

     The atmosphere was unusually clear, as if loath to part with the daylight; but the moon, like a round of lucid snow, had risen on the sky; and a pale, soft gleam, came from the lamps amid the foliage.

   • 1865, Walt Whitman, “When Lilacs Last in the Dooryard Bloom’d”, in Sequel to Drum-Taps: When Lilacs Last in the Dooryard Bloom’d and other poems:

     Pictures of growing spring and farms and homes, / With the Fourth-month eve at sundown, and the gray smoke lucid and bright, […]

• (easily understood): clear, perspicuous, straightforward; See also Thesaurus:comprehensible
• (mentally rational): coherent, sane
• (bright): brilliant, light
• (luminous): glowing, radiant; See also Thesaurus:shining
• (transparent): clear, pellucid, see-through, transparent; See also Thesaurus:transparent or Thesaurus:translucent

• elucidate

lucid (plural lucids)

1. A lucid dream.
   • 1986, Benjamin B. Wolman, Montague Ullman, Handbook of states of consciousness, page 163:

     The day before nightmare-initiated lucids, subjects reported more depressed feelings […]

• Ludic, dulic, ludic

Borrowed from French lucide.

• IPA^(key): /luˈt͡ʃid/

lucid m or n (feminine singular lucidă, masculine plural lucizi, feminine and neuter plural lucide)

1. lucid, clear-sighted

• luciditate

• lucid in DEX online—Dicționare ale limbii române (Dictionaries of the Romanian language)

lucid

1. second-person plural imperative of lucir