Some semanticists have argued that technical vocabulary or terminology is extralinguistic and therefore semantically uninteresting. However, no boundary exists in linguistic reality between terminology and ordinary vocabulary. Rather, terminologies and ordinary language exist on a continuum, and terminology is therefore a legitimate field for structural investigation. Evidence for this is found in semantic phenomena (markedness, synonymy, homonymy, and polysemy) in a variety of terminologies (subjects), including Scouting, linguistics, psychology, sociology, philosophy, physics, technology, geography, and meteorology. Terminology offers much for the linguist to analyze and classify, and it is appropriate that linguists participate actively in discussions of the introduction or change of terms in areas of science and culture. (MSE)