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nostoc

Intermediate (B1)

IPA: //ˈnɒstɒk//

KK: /ˈnɑːstɒk/

noun
Definition

A type of freshwater algae that forms round clusters of thread-like structures in a jelly-like substance and is known for its ability to fix nitrogen.


Example

Nostoc can often be found in ponds and wet soil, where it plays a role in enriching the environment with nitrogen.


Conversation
Sloth A
Have you ever heard of nostoc?
Sloth B
Yeah, isn’t it that weird blue-green algae?
Sloth A
Exactly! I found some in the pond near my house.
Sloth B
That's cool! I read it helps with nitrogen fixation too.

Synonyms & Antonyms
Synonyms
cyanobacteria
alga
filament
Antonyms
Root Explanation

Nostoc is derived from the Greek word "noston" (meaning return) and "-oc" (a suffix used in biological nomenclature). The term refers to a genus of cyanobacteria that can return to life after desiccation, hence the connection to the idea of returning or revival.

Memory Tip

Think of the Greek word for 'return' when you remember 'nostoc' — it describes a type of bacteria that can come back to life after drying out.

Visually Confused Words
nonstock
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