porcupine

American  

[pawr-kyuh-pahyn] / ˈpɔr kyəˌpaɪn /

noun

1. any of several rodents covered with stiff, sharp, erectile spines or quills, as Erethizon dorsatum of North America.

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porcupine British  

/ ˈpɔːkjʊˌpaɪn /

noun

1. any of various large hystricomorph rodents of the families Hystricidae, of Africa, Indonesia, S Europe, and S Asia, and Erethizontidae, of the New World. All species have a body covering of protective spines or quills

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Other Word Forms

• porcupinish adjective
• porcupiny adjective

Etymology

Origin of porcupine

1375–1425; late Middle English porcupyne, variant of porcapyne; replacing porke despyne < Middle French porc d'espine thorny pig. See pork, spine

Explanation

A porcupine is a prickly rodent, a round forest animal that's covered in sharp, protective quills. How do you pet a porcupine? Very, very carefully. Porcupine comes from Latin roots, porcus, "pig," and spina, "spine or quill." Fittingly, a regional name for the porcupine is "quill pig." The porcupine is famous for its spines, which become spikier when it's afraid or angry. Less well known is the fact that porcupines also clatter their teeth loudly as a warning — all the more reason for your dog to feel embarrassed after she ends up with a nose full of porcupine quills.

Example Sentences

Rick: The hotel pretty much just got the porcupine and left.

From The Wall Street Journal • Apr. 6, 2026

Scott: I think it might have been a Mexican hairy dwarf porcupine.

From The Wall Street Journal • Apr. 6, 2026

“I’m on stage with my target stick, my equipment, and having a porcupine do circles, follow me, roll a ball,” said Jadyn Carnicella, 20, a Simi Valley resident.

From Los Angeles Times • Nov. 11, 2025

The machine that cuts the stone looks a little bit like a giant porcupine.

From BBC • Feb. 16, 2025

It had been across the parking lot from a Subway, and ever since, I couldn’t smell baking Subway bread without feeling trapped and claustrophobic from the porcupine costume I was forced to wear.

From "Darius the Great Is Not Okay" by Adib Khorram