"Today's word is pellucid" Onelook Dictionary is a site where you can search a slew of different dictionaries at once for a word by checking the "search all dictionaries" option. http://www.onelook.com/ Apparently that have a "word of the day" feature, and today's word is pellucid. Quick definitions (pellucid) # adjective: (of language) transparently clear; easily understandable (Example: "Pellucid prose") # adjective: transmitting light; able to be seen through with clarity (Example: "A pellucid brook") # Word origin info is available.* *"transparent, translucent," 1619, from L. pellucidus "transparent," from pellucere "shine through," from per- "through" + lucere "to shine" (see light (n.)). This latter feature, word origin info links you to the Online Etymology Dictionary which gives an interesting history of the word. --- "Pellucid" is an ironic word: since it's not part of the average person's vocabulary, using it will make your meaning less pellucid.