System

Difficult to give a precise definition, it can be conceptualised as a set of objects together with relationships between the objects and between their attributes.  In this definition, objects are parts or components of a system (i.e., sub-systems), attributes are properties of its sub-systems, and relationships are the propositions that link the various sub-systems together …

Synecdoche

A form of metaphor in which the part (the less inclusive) stands for or replaces the whole (the more inclusive term).  An extreme example, but one that might have some adherents, is “Cognitive psychology is psychology”.  Some rhetoricians do not distinguish between a synecdoche and a metonymy.  See Analogy, Metaphor, Metonymy, Simile, Trope

Synergetics

The so-called European or Stuttgart version of non-linear dynamics, founded by Herman Haken, and sharing similarities with irreversible thermodynamics.  It is a theory of pattern formation in complex, open systems.  Originally used to study the behavior of physical systems such as the laser, it is now being increasingly applied to account for structures or patterns …

Syndrome

A collection of minor of major somatic anomalies or a collection of abnormalities with a known cause. Down’s syndrome, for example, is a collection or mixture of minor or major abnormalities and anomalies with one known cause. See Congenital abnormalities, Congenital anomalies, Down’s syndrome, Edward’s syndrome, Rett’s sydrome

Synaptogenesis

making a synapse, the site of chemical-to electrical transmission between neurones. Synapses are generated in both development and adulthood. Synaptogenesis begins in week 12 and is mostly completed by prior to birth. The cerebral cortex and basal ganglia, however, continue to manufacture synapses postnatally, with the most period being from birth to about 5-6 years …