DEFA

The term "defa" can refer to several different things, most notably a brand of engine block heater or a historical Islamic term.

In the context of automotive accessories, DEFA is a Norwegian company that manufactures and markets engine block heaters, battery chargers, and other vehicle electrical accessories. Their engine block heaters are designed to preheat an engine's coolant during cold weather, making it easier to start and reducing wear and tear. These systems often include a heating element that fits into the engine block, a cable to connect to an external power source, and sometimes a cabin heater and battery charger for a complete cold-weather package. DEFA products are widely used in regions with cold climates.

Historically and in Islamic contexts, "defa" or "dhiffa" can refer to a type of funerary feast or mourning gathering held by some Muslim communities. These gatherings, which vary in practice across different cultures, are often held a specific number of days after a death, such as on the third or seventh day, to commemorate the deceased, offer prayers, and provide a meal for attendees. The observance and nature of these events can differ significantly based on local customs and interpretations of religious tradition.