just for fun : meanings of kisses :9

"A kiss is the act of pressing one's lips against the body of another. Cultural connotations of kissing vary widely. A kiss may be used to express sentiments of love, passion, affection, respect, greeting, friendship, and good luck, among many others." -- Definition of kiss according to Wikipedia.

You also can find the other definitions of kiss/kissing according to various dictionaries, and they will describe it quite similar with the above sentences. But because this is a humor blog, we searched for the uncommon definitions of kiss according to many disciplines. And here are what we found:

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

Accountancy :
Kiss is a credit because it is profitable when returned.

Algebra :
Kiss is infinity because two divided by nothing.

Geometry :
Kiss is the shortest distance between two lips.

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

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

Zoology :
Kiss is the interchange of salivary bacteria. *kinda disgusting, huh? :p

Physiology :
Kiss is the juxtaposition of two orbicularisoris muscles in the state of contraction. *to be honest i dont have any idea what is this sentence talking about. :p

Dentistry :
Kiss is infectious and antiseptic.

Statistics :
Kiss is an event whose probability depends on the vital statistics of 36-24-36. *???

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

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.

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

Comp. Science :

What is a kiss? It seems to be an undefined variable