What Is A Sesquipedalian Word?

What Is A Sesquipedalian Word? Word Definition Length quingentumvirate government by five hundred individuals 16 quoddamodotative existing in a certain manner 16 quodlibetificate to quibble with 16 radappertization treatment of food with ionizing radiation to kill bacteria 16 What does it mean if someone is sesquipedalian? 1 : having many syllables : long sesquipedalian terms.