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

Genes and centroids used for Lund subtype label assignment.

From Nature

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

From Nature

They looked for a particular signature known as a moving centroid: an off-center point of light that could be created only by an eclipsing binary, not by a planet.

From Scientific American

When this binary blinks out as one star crosses the other, the center of the light in the field of view should shift over to the side, creating a signature called a moving centroid.

From Scientific American

For the pre-processing required by PICNIC’s hidden Markov model, we used a Bayesian model to estimate cluster centroids for each SNP.

From Nature