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porphyrin

Upper-Intermediate (B2)

IPA: /ˈpɔːrfɪrɪn/

KK: /ˈpɔr.fɪ.rɪn/

noun
Definition

A type of organic compound made up of four connected rings, which plays an important role in biological processes like carrying oxygen in blood and photosynthesis in plants.


Example

Chlorophyll is a well-known porphyrin that helps plants absorb sunlight for photosynthesis.


Conversation
Sloth A
Have you ever heard of porphyrin?
Sloth B
Yeah, isn’t it something related to hemoglobin?
Sloth A
Exactly! It plays a role in how blood carries oxygen.
Sloth B
That’s really interesting — I love learning about biology.

Synonyms & Antonyms
Synonyms
tetrapyrrole
chromophore
pigment
Antonyms
inert
nonmetallic
uncolored
Root Explanation

Porphyrin is derived from the Greek word "porphura" (meaning purple). The suffix "-in" is commonly used in chemistry to denote substances, particularly proteins or compounds. Thus, porphyrin refers to a purple compound, often associated with biological pigments.

Memory Tip

Think of the Greek word for purple ('porphura') to remember that porphyrin is a compound related to purple pigments.

Visually Confused Words
ooporphyrin
uroporphyrin
aporphin
etioporphyrin
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