1. Admitting the passage of light; transparent or translucent. See Synonyms at clear.
2. Transparently clear in style or meaning: pellucid prose.
[Latin pellūcidus, from pellūcēre, to shine through : per-, through; see PER- + lūcēre, to shine; see leuk- in the Appendix of Indo-European roots.]
pel·lu·cidi·ty, pel·lucid·ness n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.