Box blight is a disease of box leaves and stems caused by two fungi, Cylindrocladium buxicola (syn. Calonectria pseudonaviculata) and Pseudonectria buxi.
Freebase(0.00 / 0 votes)Rate this definition: A bed skirt or valance is a piece of decorative fabric that is placed between the mattress and the box spring of a bed. The purpose of a bed skirt is to give a stylish appearance to a bed without exposing the sides of the box spring or any space under the bed that may be used for storage.
Definition of skirt for English Language Learners. : 1  a piece of clothing worn by women and girls that hangs from the waist down. : 2  the part of a dress, coat, etc., that hangs from the waist down. : 3  an outer covering that hangs down to protect something.