Definition
Onomatopoeical is simply the adjective form of onomatopoeia. It describes something that's related to or characterized by imitative sounds. If a word is onomatopoeic, it is an example of onomatopoeia, so 'onomatopoeical' would describe its nature. Think of it as adding '-al' to show an adjectival relationship. So it is the more technical way to say something sounds like what it is. ✨