Swallowing is a complex act that involves the coordinated activity of the mouth, pharynx, larynx and esophagus (Figure 1). A swallow has four phases: oral preparatory, oral propulsive, pharyngeal and esophageal.3.
Sir Isaac Newton is the founder of the classical mechanics. His three laws of motion, gravitational laws, etc. are the most fundamental & basic laws of nature.
Wiktionary(2.00 / 1 vote)Rate this definition: 1  newton(Noun) In the International System of Units, the derived unit of force; the force required to accelerate a mass of one kilogram by one metre per second per second. 2  Newton(ProperNoun) The name of many English places.