• WordNet 3.6
    • adj lucid (of language) transparently clear; easily understandable "writes in a limpid style","lucid directions","a luculent oration"- Robert Burton","pellucid prose","a crystal clear explanation","a perspicuous argument"
    • adj lucid transmitting light; able to be seen through with clarity "the cold crystalline water of melted snow","crystal clear skies","could see the sand on the bottom of the limpid pool","lucid air","a pellucid brook","transparent crystal"
    • adj lucid capable of thinking and expressing yourself in a clear and consistent manner "a lucid thinker","she was more coherent than she had been just after the accident"
    • adj lucid having a clear mind "a lucid moment in his madness"
    • ***
Webster's Revised Unabridged Dictionary
    • Lucid Bright with the radiance of intellect; not darkened or confused by delirium or madness; marked by the regular operations of reason; as, a lucid interval.
    • Lucid Clear; transparent. "Lucid streams."
    • Lucid Presenting a clear view; easily understood; clear. "A lucid and interesting abstract of the debate."
    • Lucid Shining; bright; resplendent; as, the lucid orbs of heaven. "Lucid , like a glowworm.""A court compact of lucid marbles."
    • ***
Century Dictionary and Cyclopedia
    • lucid Emitting light; shining; bright; resplendent: as, the lucid orbs of heaven.
    • lucid Transmitting or reflecting light; clear; transparent; pellucid: as, a lucid stream.
    • lucid Marked by intellectual clearness or brightness; free from obscurity or confusion of thought, or, specifically, from delirium; clear headed; sane: as, a lucid mind; lucid perceptions; lucid intervals in insanity.
    • lucid Presenting a clear view; easily understood; distinct: as, a lucid order or arrangement; a lucid style of writing.
    • lucid In entomology
    • lucid Smooth and very shining; reflecting light like polished metal.
    • lucid Giv ing light; phosphorescent; luciferous.
    • lucid In botany, having a shining surface
    • ***
Chambers's Twentieth Century Dictionary
    • adj Lucid lū′sid shining: transparent: easily understood: intellectually bright: not darkened with madness
    • ***


  • Miguel De Cervantes
    “He is mad past recovery, but yet he has lucid intervals.”
  • Dylan Thomas
    Dylan Thomas
    “Never be lucid, never state, if you would be regarded great.”


Webster's Revised Unabridged Dictionary
L. lucidus, fr. lux, lucis, light. See Light (n.)
Chambers's Twentieth Century Dictionary
L.,—lux, lucis, light.


In literature:

His style is eminently lucid, fluent, forcible, and of graceful finish.
"Library Of The World's Best Literature, Ancient And Modern, Vol. 2" by Charles Dudley Warner
But his prose is by far the weightiest, the most lucid, effective, and pleasing of his day.
"Library Of The World's Best Literature, Ancient And Modern, Vol 3" by Various
This quality is a result of his extreme lucidity, not only of thought, but of intention.
"Emerson and Other Essays" by John Jay Chapman
Antonyms: rational, lucid, sane.
"Putnam's Word Book" by Louis A. Flemming
His explanations were not very lucid, for Bob was no great hand at analysis.
"The Rules of the Game" by Stewart Edward White
His understanding was lucid, and his judgment accurate; so that his conduct never betrayed hurry or confusion.
"Library Of The World's Best Literature, Ancient And Modern, Vol 4" by Charles Dudley Warner
There is a faint chill in the clear air, a tranquil calm on the gently rising and falling sea and in the lucid sky.
"Six Women" by Victoria Cross
The style of his works was plain and lucid, and he had a remarkable faculty of apt illustration.
"A Short Biographical Dictionary of English Literature" by John W. Cousin
She was in the semi-lucid state of a sleepwalker.
"Out of the Ashes" by Ethel Watts Mumford
All the compositions of the previous year were perfectly lucid and sane.
"The World's Great Men of Music" by Harriette Brower

In poetry:

Whose lucid glow may thrones o'erthrow,
Or bid new nations rise,
May prove some plan whereby proud man
May ransack earth and skies.
"Good Habits" by Jared Barhite
And then I know the mist is drawn
A lucid veil from coast to coast,
And in the dark church like a ghost
Thy tablet glimmers to the dawn.
"In Memoriam A. H. H.: 67" by Alfred Lord Tennyson
Yet no ! not dim--its lucid rays
Still triumph o'er the mists of sorrow ;
They leave these transitory days
And rest upon a distant Morrow.
"Glances Back" by Laura Sophia Temple
Fountain of Life, in Thee alone is Light!
Shine through our being, cleansing us of sin,
Till we grow lucid with Thy Presence bright —
The peace of God within.
"The Still Hour" by Lucy Larcom
How like is childhood to the lucid tide
That calmly wanders thro' the mossy dell,
Sweeps o'er the lily by the margin's side,
And, as it kisses, murmurs out, Farewell!
"Sonnet II" by Sir John Carr
And then, perhaps, he would bestow on me — majesty!
(O modesty aside, forgive my fallen pride, O hidden
The lamp, the lantern, the lucid light he sought for
"Albert Einstein To Archibald Macleish" by Delmore Schwartz

In news:

A lucid exposition of how Proust put his reading to work in the creation of "In Search of Lost Time.".
Presumably this is because there is a bad tradeoff between a sensuous existence and a perceptually lucid one.
The Guggenheim Museum invites you to honor, with all your affective presence, the lucid and positive advent of a certain reign of the sensitive.
Optronics International has been acquired by Taiwan-based Lucidity Enterprise.
Optronics, a manufacturer and supplier of HD vehicle lighting, will operate as an independent business unit of Lucidity.
Blind and wheelchair bound, she remains lucid and regales young visitors with tales from a full life.
Not Peter Higgs, who by all reports is a clear-spoken and generally lucid guy.
Readers will be pleased to discover that the star-crossed marriage of lucid prose and expertly deployed postmodern switcheroos that helped shoot Egan to the top of the genre-bending new school is alive in well in this graceful yet wild novel.
This timely, lucid documentary deserves a Best Picture nomination.
Posted on behalf of Jonathon Scott Feit, MBA, MA, Co-Founder & CEO, Beyond Lucid Technologies, Inc.
I find it the most lucid and understanding treatment of the subject by a non-Jew which I have ever read.
To represent its products in the states of Maine, Massachusetts, Connecticut, Vermont, New Hampshire, and Rhode Island RDA will represent the Symetrix, SymNet, Lucid, and AirTools brands.
For the pilot, Lucid installed equipment to monitor electricity consumption in real time in the participating stores.
It is a pleasure to read Janet Malcolm's lucid and engaging prose reviewing two volumes on "Analysis of Transference" by Merton Gill.
Biblical visions were "only" lucid dreams.

In science:

At the same time, the translator creates entries in a Lucid identifier symbol table to record Lucid expr i, as well as its corresponding Lucid expression in a form of a pointer to the root node of that expression in the AST.
Object-Oriented Intensional Programming: Intensional Classes Using Java and Lucid
After learning that some Lucid expr i corresponds to an intensional data member declaration, the processor will apply translation rule (TR3) to generate standard Java code.
Object-Oriented Intensional Programming: Intensional Classes Using Java and Lucid
Next, the translator passes each embedded Lucid expression to the corresponding Lucid compiler, whose parser name is specified by the Lucid variant id tag as signified in translation rule (TR4).
Object-Oriented Intensional Programming: Intensional Classes Using Java and Lucid
After that, the translator does rudimentary semantic checking only for the embedded Lucid expressions (the Java complete code checking is deferred to later analysis by the standard Java compiler).
Object-Oriented Intensional Programming: Intensional Classes Using Java and Lucid
The limited semantic checking at this stage involves checking the symbol tables produced in the steps 1 and 2 for undefined or multiply defined identifiers in their corresponding scope according to the Lucid and Java semantics.
Object-Oriented Intensional Programming: Intensional Classes Using Java and Lucid