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pleochroism

Upper-Intermediate (B2)

IPA: /ˌpliːəˈkroʊɪzəm/

KK: /plɪˈoʊkroʊɪzəm/

noun
Definition

A characteristic of certain crystals that display different colors when viewed from different angles or with polarized light.


Example

The pleochroism of the gemstone made it appear to change color as I turned it in the light.


Conversation
Sloth A
Did you know some crystals can show different colors when you look at them from different angles?
Sloth B
Really? That's interesting! What's that called?
Sloth A
It's called pleochroism, and it's pretty fascinating to see in person.
Sloth B
I have to check that out; it sounds like a cool property of crystals!

Synonyms & Antonyms
Synonyms
dichroism
trichroism
coloration
Antonyms
monochromatism
uniformity
sameness
Root Explanation

Pleochroism → It is formed from "pleo-" (from Greek "pleion", meaning more) and "chroa" (from Greek "chroa", meaning color). The word describes the phenomenon where a substance shows different colors when viewed from different angles, indicating it has more than one color.

Memory Tip

Think of 'more' ('pleo-') colors appearing from different angles — that's what pleochroism means.

Visually Confused Words
prochronism
polychroism
pseudochronism
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