pentel noun2 •A non-permanent marker pen.Failing this, a piece of hardboard with white Fablon from Woolworths makes a good surface for drawing with water-soluble pentels. The drawings can be removed with a damp cloth. — 1974 •(rare) A pnictogen or element from group 15 of the periodic table, which includes elements nitrogen, phosphorus, arsenic, antimony and bismuth. formspentels