terminology

terminology — noun

1. the complete set of specialized words that people in a given profession, researc

1.nounB2
Definition

the complete set of specialized words that people in a given profession, research area, or field of practice use among themselves.

Example

Élise struggled with the medical terminology in her father's test results before taking him to the appointment.

field + terminology: medical terminology in patient documents

The legal terminology in the contract was too complex for the tenants to follow.

collocation: complex terminology

Common collocations
  • medical terminology
  • legal terminology
  • technical terminology
  • scientific terminology
  • specialised terminology
  • complex terminology
  • basic terminology
  • standard terminology
  • use terminology
  • adopt terminology
  • borrow terminology
  • define terminology
  • introduce terminology
  • learn the terminology
Synonyms
  • nomenclature

    more formal; suggests an official, standardized naming system (e.g. in biology or chemistry)

  • jargon

    more informal; can imply language that is unnecessarily hard for outsiders to understand

  • vocabulary

    broader; can refer to all words a person knows, not just technical terms of a field

Grammar Patterns

the terminology + of + [field]

[field] terminology

Usage Note

Terminology is uncountable — do not use a plural form (❌ terminologies) when referring to the terms of one field. To talk about the terms of different fields together, use 'the terminologies of different fields' only in formal academic writing; for everyday use, rephrase with 'the terminology used in each field.'

Common Mistakes

I need to learn the terminologies of computer science.
I need to learn the terminology of computer science.
Terminology is uncountable in this meaning and does not take a plural form.
This is a difficult terminology to understand.
This is a difficult term to understand.
Terminology refers to the whole set of words, not a single word or expression.

Word family

  • terminological
    adjectiveC1
  • terminologically
    adverbC1
  • terminologist
    nounC2

Synonym discussion

Sense: noun/1

Terminology, nomenclature, jargon, and lexicon all refer to the vocabulary of a particular group, but they differ in formality and connotation. Terminology is the most neutral and widely applicable word — it simply means the technical words of any field. Nomenclature is more formal and implies an official, standardised system of naming, especially in scientific disciplines (e.g. zoological nomenclature governed by an international body). Jargon often carries a slightly negative tone, suggesting language that is unnecessarily complicated or used to exclude outsiders (e.g. legal jargon that confuses clients). Lexicon is the broadest term: it can refer to the full vocabulary of a language, a person, or a field, and is less technical than terminology. In everyday speech: 'The medical terminology was explained in plain English' (neutral) vs. 'The doctor used so much jargon I couldn't understand a word' (critical).

nomenclaturejargon ↗lexicon ↗

Common collocations

Nouns

  • terminology + verb: expand, evolve, change, differ
  • subject + terminology: field terminology, industry terminology

Phrases

  • in [field] terminology
  • according to [field] terminology

Prepositions

Etymology

LatinGreekFrenchEnglish

From Latin 'terminus' (boundary, limit) combined with Greek-derived '-logia' (the study or science of). The word entered English in the early 1700s with the meaning 'the study of terms or naming systems' before shifting to its modern sense: the set of special terms belonging to a particular field of knowledge.