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
Definition of matriarchy for English Language Learners. : 1  a family, group, or government controlled by a woman or a group of women. : 2  a social system in which family members are related to each other through their mothers.