Origin: Greek suffix -ology
Terminology has 2 different meanings across 1 category:
a system of words used to name things in a particular discipline
"legal terminology"
"biological nomenclature"
"the language of sociology"
A treatise on terms, especially those used in a specialised fied
"The professor's lecture was nothing more than a lengthy terminology covering every obscure word used in quantum physics."
In plain English: Terminology is just the specific set of special words used by people who work in a certain field.
"The teacher had to explain complex terminology so that every student could understand the lesson."
Usage: Use terminology to refer collectively to the specific words and expressions of a particular field or profession. Avoid using it as a synonym for individual technical terms; instead, pair it with phrases like "medical terminology" or "legal terminology."
The word terminology comes from the French and German forms derived from New Latin terminologia. It combines "terminus," meaning a term or limit, with "-ology" to signify the study of specific terms.