Is fiberglass the same as batt?

Fiberglass is not same as batt, but fiberglass batt is type of fiberglass insulation, so fiberglass is material, batt is form of insulation made from fiberglass or other materials, similar to Packout being brand and organizer being form. Fiberglass is material made of fine glass fibers, used for insulation, while batt is pre-cut blanket of insulation, typically fiberglass batt or mineral wool batt, sized to fit between studs and joists. So all fiberglass batts are fiberglass, but not all fiberglass is batt, as fiberglass also comes as blown-in, loose-fill, and rigid board. Batt refers to form, rectangular blanket, while fiberglass refers to material composition. So fiberglass batt is fiberglass material formed into batt form for easy installation in walls and attics. Other batt materials include mineral wool and cotton. So fiberglass and batt are related but not same, batt is form factor, fiberglass is material, like saying is plastic same as box, plastic is material, box is form. Fiberglass batts are common insulation in attics and walls, providing thermal resistance, similar to insulation protecting storage from temperature.