Each style of language makes use of a group of language means the inter relation of which is peculiar to the given style. It is the coordinator of the language means and stylistic devices which shapes the distinctive features of each style, and not the language means or stylistic devices themselves. Each style however, can be recognized by one or more leading features, which are especially conspicuous.
A style of language can be defined a system of coordinated, interrelated and interconditioned language means intended to fulfill a specific function of communication and aiming at a definite effect. Each style is a relatively stable system at the given stage in the development of the literary language, but it changes, and sometimes; considerably, from one period to another. There fore style of language is a historical category.
The development of each style is predetermined by the changes in the norms of Standard English. It is also greatly influenced by changing social conditions, the progress of science and the development of cultural life in the country. For instance, the emotive elements of language were abundantly used in scientific prose in the 18th century. This is explained by the fact that scientists in many fields used the emotional language instead of one more logically precise and convincing, because they lacked the scientific data obtainable only by the deep, prolonged research. With the development of science data, emotive elements gave way to convincing arguments and “stub born facts.