anisotropy

American  

[an-ahy-so-truh-pee] / ˌæn aɪˈsɒ trə pi /

Rarely anisotropism

noun

1. Physics. the fact of having unequal physical properties along different axes.

   Even crystals with a simple cubic lattice structure, such as salt, display optical anisotropy; that is, the light propagates differently in different directions.

2. Botany. the fact of having different rates of growth in different directions.

   Anisotropy is a nearly ubiquitous feature of plant growth; it is necessary, if a growing plant organ is to produce any other form than a sphere.

---

Etymology

Origin of anisotropy

First recorded in 1875–80; an- ¹ ( def. ) + isotrop(ic) ( def. ) + -y ³ ( def. )

Example Sentences

When materials have different properties or behavior when measured or observed from different directions, that's known as anisotropy.

From Science Daily • May 7, 2024

So far, the potential hotspots seem to correlate with regions of the sky where fewer pulsars have been used in the data sets, meaning the anisotropy may simply be a miragelike artifact of data collection.

From Scientific American • Aug. 4, 2023

Pham said the speed likely differs based on the wave direction due to a physical property known as anisotropy, which allows a material to possess different properties in different directions.

From Washington Post • Feb. 24, 2023

Further anisotropy can result from fractures formed at the outer rise.

From Nature • Nov. 13, 2018

And finally, perhaps, the most significant example for the effect of induced anisotropy lies in that differential impression made by stimulus on the sensory surfaces, which remains latent, and capable of revival, as the memory-image.

From Sir Jagadis Chunder Bose His Life and Speeches by Bose, Jagadis Chandra, Sir