centroid: meaning, definition, pronunciation and examples
C2Technical (Primarily academic, scientific, engineering)
Quick answer
What does “centroid” mean?
The geometric centre point of a shape or object.
Audio
Pronunciation
Definition
Meaning and Definition
The geometric centre point of a shape or object; the point where the shape would balance perfectly.
In mathematics, statistics, and physics: the arithmetic mean position of all the points in a geometric shape or a set of points. It can also refer to the centre of mass of a uniform density object.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage. Spelling is consistently 'centroid' in both varieties.
Connotations
Neutral technical term in both.
Frequency
Equally rare and specialised in both UK and US English, appearing almost exclusively in scientific/technical fields.
Grammar
How to Use “centroid” in a Sentence
the centroid of [NP (e.g., the triangle)]find/calculate/locate [NP]'s centroidVocabulary
Collocations
Examples
Examples of “centroid” in a Sentence
verb
British English
- The software can centroid the cluster of data points automatically.
- We need to centroid these polygons before analysis.
American English
- The algorithm will centroid the set of coordinates.
- First, centroid the triangular region.
adjective
British English
- The centroid calculation is a standard procedure.
- We identified the centroid point.
American English
- The centroid coordinates are essential for the model.
- A centroid location was estimated.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Common in mathematics, engineering, physics, and computer science (e.g., data clustering) textbooks and papers.
Everyday
Extremely rare; would likely be replaced by 'centre' or 'middle'.
Technical
Core term in geometry, structural engineering, computer graphics, and statistics for describing the central point of a figure or data cluster.
Watch out
Common Mistakes When Using “centroid”
- Using 'centroid' to mean any general centre (e.g., the centroid of the city).
- Confusing 'centroid' with 'median' in statistics.
- Pronouncing it as /ˈsentrɪd/.
FAQ
Frequently Asked Questions
Only for an object with uniform density. The centre of gravity accounts for variable density, while the centroid is a purely geometric property.
Yes, in technical contexts (e.g., data science, engineering) meaning 'to calculate or assign a centroid to'.
No, it is a specialised term used almost exclusively in mathematics, engineering, and science.
In geometry, the centroid is a point. A median is a line from a triangle's vertex to the midpoint of the opposite side. The centroid is where the three medians intersect.
The geometric centre point of a shape or object.
Centroid is usually technical (primarily academic, scientific, engineering) in register.
Centroid: in British English it is pronounced /ˈsɛn.trɔɪd/, and in American English it is pronounced /ˈsɛn.trɔɪd/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None”
Learning
Memory Aids
Mnemonic
Think of 'centroid' as 'CENTRe Of a solID' shape. It's the point at the solid's centre.
Conceptual Metaphor
THE CENTRE IS BALANCE (The centroid is where an object balances perfectly).
Practice
Quiz
In which of the following sentences is 'centroid' used correctly?