Definition: Any of several species of large sea mammals of the infraorder Cetacea.

Alright class, settle down and let’s take a look! You’ve got a fantastic question today, it’s truly quite grand – about what exactly does “whale” command? The dictionary's clue is helpful, don’t you see? Let’s break it down for you, just you and me. “Any of several species…” That means many kinds, you know, Of creatures big and beautiful, putting on a show! “…of large sea mammals…” Now listen close, this is key, They live in the ocean blue, wild and free! "...of the infraorder Cetacea.” This part’s a bit deep, It just tells us where they fit, secrets they keep! Cetaceans are a group, you see, Of mammals that swim beneath the sea! So, a whale is basically a giant ocean friend, A marvelous mammal, until the very end. Do you have any questions about this definition bright? Let’s discuss it with all your might!