Definition of kiss

Prof .of Economics
Kiss is that thing for which the demand is
always higher than the supply.

Prof. of Accountancy
Kiss is a credit because it is profitable when returned.

Prof. of Algebra
Kiss is infinity because two divided by nothing.

Prof. of Geometry
Kiss is the shortest distance between two lips.

Prof. of Physics
Kiss is the contraction of mouth due to the expansion of the heart.

Prof. of Chemistry
Kiss is the reaction of the interaction between two hearts.

Prof. of Zoology
Kiss is the interchange of salivary bacteria.

Prof. of Physiology
Kiss is the juxtaposition of two orbicularisoris muscles
in the state of contraction.

Prof. of Dentistry
Kiss is infectious and antiseptic.

Prof! . of Statistics
Kiss is an event whose probability depends on the
vital statistics of 36-24-36.

Prof. of Philosophy
Kiss is the persecution for the child,
ecstasy for the youth and homage for the old.

Prof. of English
Kiss is a noun that is used as a conjunction,
it is more common than proper,
it is spoken in the plural and
it is applicable to all.

Prof. of Architecture
Kiss is a process which builds a solid bond
between the two dynamic objects

Prof. of Computer Science
What is a kiss? It seems to be an undefined