Lexic.us

Definition of Pleochroism

1. Noun. The phenomenon of different colors appearing when certain crystals are viewed from different directions.

Definition of Pleochroism

1. n. The property possessed by some crystals, of showing different colors when viewed in the direction of different axes.

Definition of Pleochroism

1. Noun. (physics) The optical phenomenon in some colored, transparent crystals (such as tourmaline) in which the color is different in different directions. ¹

¹ Source: wiktionary.com

Definition of Pleochroism

1. [n -S]

Medical Definition of Pleochroism

1. The phenomenon of a substance showing different absorption colours in different vibration directions of polarized light. The observed colours change with the orientation of the crystal and can be seen only with plane polarized light, i.e., a single polar. (05 Aug 1998)

Lexicographical Neighbors of Pleochroism

Literary usage of Pleochroism

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

1. Manual of Petrographic Methods by Albert Johannsen (1918)
"Determination of pleochroism.—pleochroism can be seen, with the unaided eye, in but very few minerals. It can easily be seen, under the microscope, ..."

2. Manual of Petrographic Methods by Albert Johannsen (1914)
"Determination of pleochroism.—pleochroism can be seen, with the unaided eye, in but very few minerals. It can easily be seen, under the microscope, ..."

3. Manual of Petrographic Methods by Albert Johannsen (1918)
"Pseudo-pleochroism, Pseudo-dichroism, or Pseudo-absorption. ... According to Schroeder van der Kolk,7 pseudo-pleochroism is due to the fact that innumerable ..."

4. Introduction to the Study of Minerals: A Combined Textbook and Pocket Manual by Austin Flint Rogers (1912)
"ABSORPTION AND pleochroism The color of a transparent substance is due to the residual color of the spectrum left after the substance has absorbed a certain ..."

5. Elementary Chemical Microscopy by Emile Monnin Chamot (1921)
"pleochroism. — Many compounds have the power of absorbing part of the light rays vibrating in certain planes and therefore if viewed through the polarizing ..."

6. Elementary Chemical Microscopy by Emile Monnin Chamot (1921)
"pleochroism. — Many compounds have the power of absorbing part of the light rays vibrating in certain planes and therefore if viewed through the polarizing ..."

7. The Encyclopedia Americana: A Library of Universal Knowledge (1919)
"pleochroism. See PHYSICAL CRYSTALLOGRAPHY. PLESIOSAURUS, a genus of extinct reptiles of the order ..."

8. Elementary Chemical Microscopy by Emile Monnin Chamot (1915)
"pleochroism. — Many compounds have the power of absorbing part of the light rays vibrating in certain ... Substances are tested for pleochroism by placing ..."

9. Manual of Petrographic Methods by Albert Johannsen (1918)
"Determination of pleochroism.—pleochroism can be seen, with the unaided eye, in but very few minerals. It can easily be seen, under the microscope, ..."

10. Manual of Petrographic Methods by Albert Johannsen (1914)
"Determination of pleochroism.—pleochroism can be seen, with the unaided eye, in but very few minerals. It can easily be seen, under the microscope, ..."

11. Manual of Petrographic Methods by Albert Johannsen (1918)
"Pseudo-pleochroism, Pseudo-dichroism, or Pseudo-absorption. ... According to Schroeder van der Kolk,7 pseudo-pleochroism is due to the fact that innumerable ..."

12. Introduction to the Study of Minerals: A Combined Textbook and Pocket Manual by Austin Flint Rogers (1912)
"ABSORPTION AND pleochroism The color of a transparent substance is due to the residual color of the spectrum left after the substance has absorbed a certain ..."

13. Elementary Chemical Microscopy by Emile Monnin Chamot (1921)
"pleochroism. — Many compounds have the power of absorbing part of the light rays vibrating in certain planes and therefore if viewed through the polarizing ..."

14. Elementary Chemical Microscopy by Emile Monnin Chamot (1921)
"pleochroism. — Many compounds have the power of absorbing part of the light rays vibrating in certain planes and therefore if viewed through the polarizing ..."

15. The Encyclopedia Americana: A Library of Universal Knowledge (1919)
"pleochroism. See PHYSICAL CRYSTALLOGRAPHY. PLESIOSAURUS, a genus of extinct reptiles of the order ..."

16. Elementary Chemical Microscopy by Emile Monnin Chamot (1915)
"pleochroism. — Many compounds have the power of absorbing part of the light rays vibrating in certain ... Substances are tested for pleochroism by placing ..."

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