From Longman Dictionary of Contemporary Englishpropelling pencilproˌpelling ˈpencil noun [countable] British EnglishTD a pencil made of plastic or metal, in which the lead (=the part used for making marks) can be pushed out as it is used SYN mechanical pencil American English
Examples from the Corpus
propelling pencil• And inside the pencil-case the management has placed something even more astonishing: a propelling pencil with four different colours in it.• He tells her about the pencil-case and the four-colour propelling pencil. 