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.

---

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

---

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

Blue asterisks mark the centroid positions on subsequent days.

From Nature • Mar. 21, 2017

Since we are only asked for the centroid of the region, rather than the mass or moments of the associated lamina, we know the density constant ρ cancels out of the calculations eventually.

From Textbooks • Mar. 30, 2016

Figure 2.70 Finding the centroid of a region between two curves.

From Textbooks • Mar. 30, 2016

It would seem that the point where their full strength should be developed is rather at the neutral axis than at the centroid of compression stresses.

From Some Mooted Questions in Reinforced Concrete Design American Society of Civil Engineers, Transactions, Paper No. 1169, Volume LXX, Dec. 1910 by Godfrey, Edward