What is BNB full form?

Could you please explain what BNB stands for? I've been hearing a lot about it in the cryptocurrency world, but I'm not quite sure of its full form or its significance in the finance industry. I'm particularly interested in understanding its role within the Binance ecosystem and how it's used in various transactions. Could you elaborate on this, please? It would greatly help me in gaining a deeper understanding of this digital asset and its place in the crypto market.