### Definition of Orthorhombic

1. a. Noting the system of crystallization which has three unequal axes at right angles to each other; trimetric. See Crystallization.

### Definition of Orthorhombic

1. Adjective. (crystallography) having three unequal axes at right angles ¹

¹ Source: wiktionary.com

### Medical Definition of Orthorhombic

1. Noting the system of crystallization which has three unequal axes at right angles to each other; trimetric. See Crystallization. Origin: Ortho- + rhombic. Source: Websters Dictionary (01 Mar 1998)

### Orthorhombic Pictures

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### Literary usage of Orthorhombic

Below you will find example usage of this term as found in modern and/or classical literature:

1. Mineralogy: An Introduction to the Study of Minerals and Crystals by Edward Henry Kraus, Walter Fred Hunt (1920)
"The orthorhombic system comprises three classes of symmetry, as follows: 1. orthorhombic bipyramidal class 2. orthorhombic pyramidal class 3. ..."

2. A Text-book of Mineralogy: With an Extended Treatise on Crystallography and by Edward Salisbury Dana, William Ebenezer Ford (1922)
"The orthorhombic system includes all the forms which are referred to three axes at right ... The forms of the normal class of the orthorhombic system are ..."

3. Mathematical Crystallography and the Theory of Groups of Movements by Harold Hilton (1903)
"CHAPTER XIX orthorhombic GROUPS. § 1. orthorhombic ... All orthorhombic groups are isomorphous with some orthorhombic ..."

4. Dana's Manual of Mineralogy: For the Student of Elementary Mineralogy, the by James Dwight Dana, William Ebenezer Ford (1912)
"143 represents the crystallographic axes for the orthorhombic mineral sulphur, ... The symmetry of the Normal Class, orthorhombic System, is as follows: The ..."

5. Introduction to the Study of Minerals: A Combined Textbook and Pocket Manual by Austin Flint Rogers (1912)
"THE orthorhombic SYSTEM The orthorhombic system includes all crystals that can be referred ... Axes for cerussite. differ for every orthorhombic substance. ..."

6. Elementary Crystallography: Being Part One of General Mineralogy by William Shirley Bayley (1910)
"THE orthorhombic SYSTEM. Systems Possessing No Principal Plane of Symmetry.— As the hexagonal and the tetragonal systems are classed together in consequence ..."

7. Mineralogy: An Introduction to the Scientific Study of Minerals by Henry Alexander Miers (1902)
"They are rather fiat prisms owing to the predominance of the m faces, and the absence of 1> and are usually terminated like Fig. 571. orthorhombic ..."

8. A Text-book of Mineralogy: With an Extended Treatise on Crystallography and by Edward Salisbury Dana, James Dwight Dana (1877)
"... really belong to the orthorhombic system, being produced by twinning parallel to the vertical prism ; eg, the apparently hexagonal prisms of aragonite. ..."