noun
terminology
tur-mih-NAH-luh-jee/ˌtɜːrmɪˈnɑːlədʒi/
Words and expressions used in a particular field or subject.
The botanist explains the specialist terminology used to identify plant parts.

Etymology
The pieces frame terminology as discourse about words or expressions. The word has covered both teaching the proper use of terms and the specialized vocabulary used collectively in a particular subject.
In context
I've been using the terminology of little stems or stalks, but the correct terminology to describe these parts here is actually the pedicel
More examples
- New employees learn the terminology of the insurance industry.
- She avoids technical terminology when explaining how the app works.
- The two disciplines use different terminologies for similar ideas.
Forms
terminology · terminologies
terminological adjective — Relating to a subject's specialized vocabulary.
Similar words
- jargon
- Often emphasizes specialized language that outsiders find difficult to understand.
- vocabulary
- Can include all words someone knows, not just specialized terms.
- nomenclature
- Focuses on systematic names for things within a field.