Barnacle (slang) in the field in order to correct a design or manufacturing defect. The term appears to have originated from the crustacean barnacle which is an animal that attaches itself to rocks, docks, ships, whales, and other objects where it grows. A barnacle in electronics is something added to the manufactured product. Typically a barnacle on a circuit board is very noticeable, much like the mollusc variety on a rock in the sea. While the term was originally used with electronic hardware, it has also migrated into the software industry where is it is used to describe software that is added
Barnacle goose However, it was also criticized by other medieval authors, including Albertus Magnus. This belief may be related to the fact that these geese were never seen in summer, when they were supposedly developing underwater (they were actually breeding in remote Arctic regions) in the form of barnacles—which came to have the name "barnacle" because of this legend. Based on these legends—indeed, the legends may have been invented for this purpose—some Irish clerics considered barnacle goose flesh to be acceptable fast day food, a practice that was criticized by Giraldus Cambrensis, a Welsh author: ...Bishops and religious men ("viri religiosi") in