ELI5: Explain Like I'm 5

Theta nigrum

Theta nigrum is a fancy word for black pepper. Just like how we put salt on our food to make it taste better, we can also put black pepper on our food to give it a little bit of spice. Black pepper comes from a plant that grows in warm places like India and Indonesia. The little black balls that we see in our pepper shakers are actually the dried fruit from the plant. So, when we shake them over our food, we are sprinkling tiny bits of dried fruit on our meal!
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