My hands got really dry.
Don't hit on my girlfriend.
Teacher, why are your hands so hairy?
The kanji and the word are exactly the same. That means they share meanings as well.
Since this word is made up of a single kanji, it uses the kun'yomi reading. Since this is a body part, the kun'yomi reading usually takes priority. That means you learned the kun'yomi reading already when you learned the kanji.