adj. Pertaining to or given to the use of overly long words.
The Century Dictionary and Cyclopedia
Containing or measuring a foot and a half: as, a sesquipedalian pygmy: often humorously said of long words, in translation of Horace's sesquipedalia verba (words a foot and a half long).
Addicted to the use of long words.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. given to the overuse of long words
adj. (of words) long and ponderous; having many syllables
n. a very long word (a foot and a half long)
Word Usage
""Clarence Thomas, please spell the word sesquipedalian and then use it in a form of a question.""