centroid

American  

[sen-troid] / ˈsɛn trɔɪd /

noun

1. Mechanics. the point that may be considered as the center of a one- or two-dimensional figure, the sum of the displacements of all points in the figure from such a point being zero.

2. Also called median point.  Geometry. that point where the medians of a triangle intersect.

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centroid British  

/ ˈsɛntrɔɪd /

noun

1. 1. the centre of mass of an object of uniform density, esp of a geometric figure

   2. (of a finite set) the point whose coordinates are the mean values of the coordinates of the points of the set

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Other Word Forms

• centroidal adjective

Etymology

Origin of centroid

First recorded in 1875–80; centr- + -oid

Example Sentences

Green asterisks indicate the centroid position of each cell on day 1.

From Nature • Mar. 21, 2017

Green asterisks indicate the centroid position of each cell on day 1.

From Nature • Mar. 21, 2017

The symmetry principle says that if a region is symmetric with respect to a line, then the centroid of the region lies on the line.

From Textbooks • Mar. 30, 2016

Therefore, the x-coordinate of the centroid is zero.

From Textbooks • Mar. 30, 2016

The couple is equal to the moment of the applied load W about an axis drawn through the centroid of the section p at right angles to the plane of bending.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" by Various