Sorry, I didn't get it. How could that noun be uncountable? Example:"How many cigarettes have you smoked?","a packet of cigarettes","She lit a cigarette","One cigarette is still left" and so on.

Sergey and Alex are right. Maybe this can help: http://www.easyenglish.com/lesson.asp?much.txt

It is a countable noun. We can say: to light a cigarette, a pack of cigarettes For more information refer to "Oxford Advanced Learner's Dictionary", published by Oxford University Press.

cigarette= uncountable noun. For more information on countable and uncountable nouns go to http://www.easyenglish.com/lesson.asp?much.txt

It is uncountable noun. We say give me a stick of cigarette not one cigarette. We say give me two sticks of cigarette and not two cigarettes