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quiddity
quidnunc
quiescent
quiet
Quiet Revolution
quieten
quietism
quietude
quietus
quiff
QuikClot
quill
quill pen
quillai bark
quillback
quillwork
quillwort
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quicksilver

quick·sil·ver [ kwík sìlvər ]


adjective 
Definition:
 
changing unpredictably: tending to change rapidly and unpredictably



noun 
Definition:
 
chemical elements  ( archaic or literary )
Same as  mercury (sense 1)


[Pre-12th century. Translation of Latin argentum vivum "living silver," from the way it moves in its fluid state]
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