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auxotrophy

Upper-Intermediate (B2)

IPA: /ɔːkˈsɒtrəfi/

KK: /ɔːkˈsɒtrəfi/

noun
Definition

The condition where a microorganism cannot produce a necessary organic compound for its growth, usually due to a genetic change.


Example

The auxotrophy of the bacteria made it dependent on external sources of nutrients.


Conversation
Sloth A
Have you ever heard of the term auxotrophy?
Sloth B
Yeah, I think it's something about microorganisms, right?
Sloth A
Exactly! It refers to their inability to synthesize certain compounds.
Sloth B
That's pretty interesting; I didn't know that could happen due to mutations!

Synonyms & Antonyms
Synonyms
deficiency
dependence
malnutrition
Antonyms
sufficiency
autotrophy
self-sufficiency
Root Explanation

Auxotrophy → It is formed from "auxo-" (from Greek "auxein", meaning to increase or grow) and "trophy" (from Greek "trophē", meaning nourishment or development). The word describes a condition where an organism requires additional nutrients to grow, indicating a need for increased nourishment.

Memory Tip

Think of 'growth' ('auxo-') and 'nourishment' ('trophy') to remember that auxotrophy refers to the need for extra nutrients to grow.

Visually Confused Words
autotrophy
autotroph
atrophy
cacotrophy
amyotrophy
abiotrophy
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