A metric lick
is expressed in moles of substance removed from the surface
per square centimeters of tongue surface in contact with the surface
. Associated with any measurement made in licks
is a saliva index
, which indicates how many moles of saliva were transferred
, on average, to the surface.
Figures on how many metric licks are in one swipe of the tongue on different surfaces are appreciated. I may generate them myself when I have a chance (it's midnight, and I don't want to go around licking things right now) - s_alanet