Final answer:
False contractions without dilation or effacement are known as Braxton Hicks contractions. They are irregular and do not indicate the start of true labor. Rest and hydration can help alleviate Braxton Hicks contractions.
Step-by-step explanation:
False contractions without dilation or effacement are commonly known as Braxton Hicks contractions. These contractions are irregular and often referred to as "false labor" because they do not indicate the onset of true labor. Unlike true labor contractions, Braxton Hicks contractions usually subside with rest and hydration. They can occur throughout pregnancy, but they become more frequent as the due date approaches.