from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Easily understood; intelligible.
- adj. Mentally sound; sane or rational.
- adj. Translucent or transparent. See Synonyms at clear.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. clear; easily understood
- adj. mentally rational; sane
- adj. bright, luminous, translucent or transparent
- n. A lucid dream.
from the GNU version of the Collaborative International Dictionary of English
- adj. Shining; bright; resplendent.
- adj. Clear; transparent.
- adj. Presenting a clear view; easily understood; clear.
- adj. Bright with the radiance of intellect; not darkened or confused by delirium or madness; marked by the regular operations of reason.
from The Century Dictionary and Cyclopedia
- Emitting light; shining; bright; resplendent: as, the lucid orbs of heaven.
- Transmitting or reflecting light; clear; transparent; pellucid: as, a lucid stream.
- 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.
- Presenting a clear view; easily understood; distinct: as, a lucid order or arrangement; a lucid style of writing.
- In entomology
- Smooth and very shining; reflecting light like polished metal.
- Giv ing light; phosphorescent; luciferous.
- In botany, having a shining surface
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. (of language) transparently clear; easily understandable
- adj. having a clear mind
- adj. transmitting light; able to be seen through with clarity
- adj. capable of thinking and expressing yourself in a clear and consistent manner
Latin lūcidus, from lūcēre, to shine; see leuk- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin lucidus, from lux ("light") + -id. (Wiktionary)