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acellular

Upper-Intermediate (B2)

IPA: /eɪˈsɛljʊlə/

KK: /eɪˈsɛljələr/

adjective
Definition

This word describes something that does not have any cells or is not made up of cells.


Example

The acellular vaccine is effective in preventing certain diseases without using live pathogens.


Conversation
Sloth A
Did you know that some organisms are completely acellular?
Sloth B
Really? I thought all living things had to be made of cells.
Sloth A
It's surprising, right? Some of them are just a single complex structure without any cells!
Sloth B
That's fascinating! Nature has so many unique forms.

Synonyms & Antonyms
Synonyms
cell-free
unstructured
noncellular
Antonyms
cellular
structured
composed
Root Explanation

Acellular → It is formed from "a-" (meaning without) and "cellula" (from Latin, meaning small room or cell). The word "acellular" means without cells, referring to structures or organisms that do not have cellular organization.

Memory Tip

Think of 'a-' meaning 'without' and 'cellula' meaning 'small room' — so acellular describes something that is without small rooms or cells.

Visually Confused Words
cellular
cellularly
bicellular
parvicellular
intracellular
extracellular
unicellular
tricellular
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