What is another word for pectoral fin?
Pronunciation: [pˈɛktəɹə͡l fˈɪn] (IPA) 
The pectoral fin, also known as the breast fin or the thoracic fin, is one of the two paired fins located on the sides of a fish, just behind the gills. These fins help fish in balancing and maneuvering through water currents. In sharks and rays, pectoral fins are modified into flattened, wing-like structures that enable them to swim efficiently.
Other synonyms for pectoral fins include shoulder fin, fore fin, wing fin, or side fin. In some cases, they are also referred to as appendages or flippers. The term "pectoral" comes from the Latin word pectus, meaning chest, as these fins are located close to the chest area in fish. Overall, pectoral fins play a crucial role in the survival and movement of fish in aquatic environments.
