- noting or pertaining to a system of crystallization characterized by three unequal axes intersecting at right angles; rhombic; trimetric.
Compare crystal system.
Origin of orthorhombic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for orthorhombic
Certain pyroxenes also crystallize in the orthorhombic system.Geology
William J. Miller
It crystallizes in the orthorhombic system, and the crystals are either prismatic or acicular in habit.
It crystallizes in the orthorhombic system, and has three directions of perfect cleavage parallel to the three planes of symmetry.
It is not isomorphous with the orthorhombic barium and strontium sulphates, as might be expected from the chemical formulae.
It is of less frequent occurrence in nature than copper-glance, the orthorhombic cuprous sulphide.
- crystallog relating to the crystal system characterized by three mutually perpendicular unequal axesAlso: rhombic, trimetric
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- Relating to a crystal having three axes of different lengths intersecting at right angles. The mineral topaz has orthorhombic crystals. See illustration at crystal.
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