Definitions
1.NounDandruff—scaly white dead skin flakes from the human scalp.
2.NounHair follicles and dead skin shed from mammals.
3.NounAllergen particles that accumulate on and may be shed from the skin and fur of domestic animals, especially from household pets such as cats and dogs.
4.NounA cinder; the refuse of a furnace
5.NounPassion, temper, anger. Usually preceded by "have" or "get" and followed by "up"."He'll get his dander up if his team is criticized.; She has her dander up every day about discrimination against women."
6.VerbTo wander about.
7.VerbTo maunder, to talk incoherently.