The paper presents applied research in the field of terminology studies. The research is aimed at providing an affixation matrix based on terminological data for teaching ESP to BMSTU engineering students majoring in Aerospace industry to simplify the process of learning novel terminology. The hypothesis is that the students’ general awareness of key word-building principals in the field of affixation facilitates enriching learner’s professional vocabulary by promoting standard affixation patterns for learner’s professional semantic units. The most productive affixation structures found in aerospace scientific publications and recorded in technical dictionaries that reflect the state of terminology in this subject area are presented. The morphological knowledge and lexicological aspects of English affixation processes, i.e. productivity and frequency of using affixes in terms’ structures, correlation of their graphical notations and lexical and/or grammar meanings as a means of helping engineering students to comprehend textual information from publications on Aerospace up-to-date scientific problems and technological documents. The instructional technique based on the ability of engineering students to encode and decode information by structuring all types of data is considered in relation to terminology studies as arranging meaningful units due to their semantic classification principles is more natural for them than simply memorizing new professional words. Experience in teaching aerospace terminology by means of applying a word-building approach is described which shows that predictability and recognizability of word-patterns encountered in scientific literature makes the reading process less time and labor consuming through immediate grasping the main lexical and grammar meanings of the words used in the sentence.