Definition
While very close to 'binomial,' 'binominal' is LESS common and often considered a variant spelling or misuse of 'binomial.' It technically also means something with two names or terms. However, in proper mathematical and scientific contexts, 'binomial' is the standard and preferred term. Think of 'binominal' as a less popular synonym. It's understood, but not the go-to choice. Stick with 'binomial' to avoid confusion.