orthorhombic

[awr-thuh-rom-bik]

adjective

Crystallography.

1. noting or pertaining to a system of crystallization characterized by three unequal axes intersecting at right angles; rhombic; trimetric.

orthorhombic

/ ˌɔːθəʊˈrɒmbɪk /

adjective

1. Also: rhombic.  trimetric. crystallog relating to the crystal system characterized by three mutually perpendicular unequal axes

orthorhombic

1. Relating to a crystal having three axes of different lengths intersecting at right angles. The mineral topaz has orthorhombic crystals.

2. See illustration at crystal

Other Word Forms

• pseudoorthorhombic adjective

Word History and Origins

Origin of orthorhombic¹

First recorded in 1865–70; ortho- + rhombic

Example Sentences

Under these high-pressure and high-temperature conditions, the rubidium niobate underwent a structural transformation from a complex triclinic phase at ambient pressure phase into a 26 % denser orthorhombic perovskite-type structure.

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Furthermore, through powder X-ray diffraction, researchers identified four distinct phase transitions occurring across temperatures ranging from -268°C to +800°C. Below room temperature, RbNbO3 exists in an orthorhombic phase, which is the most stable configuration.

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They found that the orthorhombic phase had a polarization of 0.33 C m−2, while the two tetragonal phases showed polarizations of 0.4 and 0.6 C m−2, respectively.

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These compounds are produced through chemical etching techniques and have crystalline lattices with repeating orthorhombic and hexagonal structures.

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Sie et al.3 report a transition in WTe2 between two crystal structures: orthorhombic and monoclinic.

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