Alpha-sapphire: Nidorino has a horn that is harder than a diamond. If it senses a hostile presence, all the barbs on its back bristle up at once, and it challenges the foe with all its might.Y: An aggressive Pokémon that is quick to attack. The horn on its head secretes a powerful venom.X: It raises its big ears to check its surroundings. If it senses anything, it attacks immediately.
Prof. Lotus' Notes: The name is a portmanteau of the Japanese borrowed word for Needle - ニドル (Nedoru), cnidocyte (thing in all poisonous animals) and rhino. The rina aspect is attributed to European languages like Italian or Spanish where o denotes male names.