tic
(Science: clinical sign) An involuntary compulsive, repetitive, stereotyped movement, resembling a purposeful movement because it is coordinated and involves muscles in their normal synergistic relationships, tics usually involve the face and shoulders.
Dictionary > Tic
You will also like...

Plant Water Regulation
Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..

Darwin and Natural Selection
This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

Muscle
Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..

Bryophytes
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..

Meiosis – The Genetics of Reproduction
Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..

Physiological Homeostasis
Homeostasis is essential to maintain conditions within the tolerable limits. Otherwise, the body will fail to function p..