Torticollis is a problem involving the muscles of the neck that causes the head to tilt down. The term comes from two Latin words: tortus, which means twisted, and collum, which means neck. If your baby has the condition at birth, itâs called congenital muscular torticollis. Thatâs the most common type.
Definition of additive inverse. : a number that when added to a given number gives zero the additive inverse of 4 is â4 â compare opposite 3.
Definition of Additive Identity. Additive identity states that the sum of the number and zero yields the same number. More about Additive Identity. The number zero is called to be the additive identity. a + 0 = a and 0 + a = a.