hexad: meaning, definition, pronunciation and examples
Very lowTechnical/scientific
Quick answer
What does “hexad” mean?
A group or set of six.
Audio
Pronunciation
Definition
Meaning and Definition
A group or set of six.
Specifically used in mathematics, chemistry, and crystallography to refer to elements, atoms, or groups arranged in sixes or possessing a sixfold symmetry.
Dialectal Variation
British vs American Usage
Differences
No significant regional differences in usage, given its extreme technicality.
Connotations
Neutral, purely descriptive term with no cultural connotations.
Frequency
Extremely rare in both varieties, with marginal usage in relevant scientific fields.
Grammar
How to Use “hexad” in a Sentence
[determiner] + hexad + of + [noun]the hexad + [verb]Vocabulary
Collocations
Usage
Meaning in Context
Business
Virtually never used.
Academic
Used in highly specialised mathematics, chemistry, or crystallography papers.
Everyday
Not used.
Technical
Primary domain. Used to describe groups of six, e.g., in coordination chemistry or combinatorial design.
Vocabulary
Synonyms of “hexad”
Watch out
Common Mistakes When Using “hexad”
- Using it as an adjective (e.g., 'hexad group' - redundant).
- Using it in general language instead of 'six' or 'sextet'.
- Mispronouncing as /ˈhiːksæd/.
FAQ
Frequently Asked Questions
No, it is an extremely rare and specialised term used almost exclusively in technical scientific contexts like mathematics and chemistry.
'Sextet' is more general and can refer to any group of six (e.g., musicians). 'Hexad' is more technical, often implying a structural or mathematical grouping.
No, it is almost exclusively used as a noun. The related adjective is 'hexadic'.
It is useful for learners in STEM fields who may encounter it in specialised literature. For general English learners, awareness is sufficient; active use is not required.
A group or set of six.
Hexad is usually technical/scientific in register.
Hexad: in British English it is pronounced /ˈhɛksad/, and in American English it is pronounced /ˈhɛkˌsæd/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of HEX (as in six, from Greek) + AD (as in add, or a group). A hexagon has six sides; a hexad is a group of six items.
Conceptual Metaphor
CONTAINER (a hexad contains six items); STRUCTURE (a hexad is a complete, often symmetrical, structure).
Practice
Quiz
In which field is the term 'hexad' MOST likely to be used?