Science word of the day: NeuroplasticityPronunciation: Nur-roh-pla-STISS'-ih-teeWhat it means: Neuroplasticity is the ability of the nervous system to adapt to the environment or to injuries by forming new connections and modifying and strengthening existing connections. Neuroplasticity can happen after an injury, such as a stroke or trauma to the brain, but it also occurs during ordinary learning. Just by reading this definition, you may be making new, sustainable brain connections.How to use it in a sentence: Scientists used to think neuroplasticity was an ability only the the young had, but researchers are increasingly learning that aging brains can adapt throughout the lifespan, much to everyone's relief. Can you crack our science word of the day puzzle, Chain Word?