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lignin

Upper-Intermediate (B2)

IPA: /ˈlɪɡnɪn/

KK: /ˈlɪɡnɪn/

noun
Definition

A complex substance found in plants that helps to strengthen their cell walls and is a major part of wood.


Example

Lignin is an important component of the structure of trees and plants.


Conversation
Sloth A
I recently read about how lignin helps strengthen plants.
Sloth B
Really? I didn't know it played such a big role.
Sloth A
Yeah, it binds to cellulose and makes the cell walls tougher.
Sloth B
That's fascinating! Nature has some amazing tricks.

Synonyms & Antonyms
Synonyms
polymer
cellulose
hemicellulose
Antonyms
sugar
starch
protein
Root Explanation

Lignin comes from the Latin word "lignum" (meaning wood). The suffix "-in" is often used in chemistry to denote substances, particularly those derived from a specific source. Thus, lignin refers to a substance derived from wood.

Memory Tip

Think of 'lignum' which means wood, and remember that lignin is a substance that comes from wood.

Visually Confused Words
linin
vignin
linpin
lining
saligenin
linn
liin
lightning
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