Hedgehog
Part of speech: noun
Definition: Small mammal characterized by its spiny back and by its habit of rolling itself into a ball when attacked. A type of moveable military barricade made from crossed logs or steel bars, laced with barbed wire, used to damage or impede tanks and vehicles; Czech hedgehog. The nickname for a type of depth charge weapon that simultaneously fires a number of explosives into the water to create a pattern of underwater explosions intended to attack submerged enemies. A type of chocolate cake (or slice), somewhat similar to an American brownie.
Example sentence: The way you want to respond is to ask a question: Is this technology directly relevant to our hedgehog concept? If the answer is YES, then we want to become pioneers, not in the technology, but in the application of that technology specifically linked to our hedgehog concept.
Porcupine
Part of speech: noun
Definition: A large rodent with long quills that stand straight up when it is attacked or surprised.