BIG vocabulary!!!

[Alpha_Ichigo]

Show off your nerdie-ness by posting words that are longer than ten letters long and their definitions. And yes they have to be real words! If you are going to put a fake word, at least tell us that you made it up.  

[Alpha_Ichigo]

First word:

Floccinaucinihilipilification - the act or habit of estimating or describing something as worthless, or making something to be worthless by deprecation  

[Alpha_Ichigo]

Second word:

Humuhumunukunukuapua'a - a Hawaiian fish  

[Alpha_Ichigo]

Third word:

Ravenousinormity - to have a ravishing hunger or desire for something that has meat in it  

[the_noodle00]

Fourth Word:
HONORI­FICABILI­TUDINI­TATIBUS = honorableness.  

[Machine Deity]

fifth word:

perspicacity: clearness of understanding.  

[Totaku Chuuei]

Deionization-the process by which ions are removed from elements or compounds.  

[Totaku Chuuei]

vicariousness-being unecpected or not following "the usual".  

[Admiralsteve110]

contemplation - the act of thinking  

[MiaIkumis#1Fan]

flibbertigibbet - a chattery or flightly person

The following is a word one of my friends made up.
amazabulonderfistastic- a combination of the words amazing, fabulous, wonderful, idealistic, and fantastic. It is used to describe something that is... all of the words that it's made up of! It's very.... positive.  

[klausolas]

inevitabilities- things incapable of being avoided.  

[Terrie Evans]

Pneumonoultramicroscopicsilicovolcanoconiosis

a lung disease caused by the inhalation of very fine silica dust found in volcanoes  

[Da_Nuke]

Sesquipedalianism: using long words when you can use simpler, shorter ones.

Multiplexator: an electronic system which selects one out of several inputs and passes it directly towards the output.  

[Arachnakid]

Triscadecaphobia: Fear of the number 13.
Indecisive: Unable to make a descision. (me)
Anachronistic: Being in the wrong time (ex: a medieval person with a cell phone.)  

[blazestonefire656]

Flabbergasted - As if struck dumb with astonishment and surprise.