Liveliness, vigour (9)
I believe the answer is:
animation
I believe this is a double definition.
'liveliness' is the first definition.
(synonyms)
'vigour' is the second definition.
(animation can mean vigour or vitality)
(Other definitions for animation that I've seen before include "Liveliness - illusion of movement in cartoon films" , "Liveliness and vigour" , "Vigour; film technique" , "Cartoon-making art" , "Making of cartoons" .)