摘要:AbstractThe deviation category is primarily formed by words with the rootdevia-in English. The semantics of these words may be seen more detailed by considering their contextual interconnections with lexical units that are the representatives of the concepts within deviation. These concepts define levels of semantic category under analysis. The author considers the term “subcategory” for more abstract components of deviation category; they are higher in the hierarchy “category – concept”. The focus of this paper is to show the linguistic peculiarities of semantic field of biological constituent of deviation category in English.