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purpurin

Upper-Intermediate (B2)

IPA: //ˈpɜːr.pjʊ.rɪn//

KK: /ˈpɜːr.pjʊ.rɪn/

noun
Definition

A reddish crystalline substance obtained from the madder plant, used as a dye and for staining in biological studies.


Example

The scientist used purpurin to stain the cells for better visibility under the microscope.


Conversation
Sloth A
Have you ever heard of purpurin?
Sloth B
No, what is it?
Sloth A
It's a dye that's made from madder root, and it has this beautiful reddish color.
Sloth B
That sounds interesting! I love learning about natural dyes.

Synonyms & Antonyms
Synonyms
dye
stain
pigment
Antonyms
bleach
decolorant
discoloration
Root Explanation

Purpurin is derived from the Latin word "purpura" (meaning purple) and the suffix "-in" (used to form names of substances). The word refers to a substance that is purple in color, often used in dyes.

Memory Tip

Think of the Latin word for purple, 'purpura', to remember that purpurin is a substance that is purple.

Visually Confused Words
isopurpurin
purring
bilipurpurin
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