Muscle twitching is caused by minor muscle contractions in the area, or uncontrollable twitching of a muscle group that is served by a single motor nerve fiber.
What is the definition of 'matriculate'? The definition of matriculate is to be enrolled at university or college. It also describes a person who has matriculated, and other similar words include enroll and register. â¦ Answers Publisher
Freebase(0.00 / 0 votes)Rate this definition: Altricial. Altricial, meaning requiring nourishment, refers to a pattern of growth and development in organisms which are incapable of moving around on their own soon after hatching or being born. The word is derived from the Latin root alere meaning to nurse, to rear, or to nourish, and refers to the need for young to be fed and taken care of for a long duration.