arcella: meaning, definition, pronunciation and examples
Very Low / TechnicalScientific / Technical / Academic (Biology, Microbiology)
Quick answer
What does “arcella” mean?
A type of testate (shelled) amoeba belonging to the genus Arcella, characterized by a discoid or hemispherical shell with a central aperture.
Audio
Pronunciation
Definition
Meaning and Definition
A type of testate (shelled) amoeba belonging to the genus Arcella, characterized by a discoid or hemispherical shell with a central aperture.
Refers to any microscopic, single-celled organism of this genus, commonly found in freshwater habitats like ponds and wetlands. In broader technical contexts, can be used metonymically for similar shelled protozoa.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling and pronunciation are consistent across varieties.
Connotations
None beyond its strict scientific denotation.
Frequency
Equally rare in both UK and US English, confined to specialized biological texts.
Grammar
How to Use “arcella” in a Sentence
[Arcella] + [verb: lives, feeds, reproduces][scientist/study] + [verb: observed, identified, counted] + [arcella]Vocabulary
Collocations
Examples
Examples of “arcella” in a Sentence
adjective
British English
- The arcella community was diverse.
- Arcella morphology is distinctive.
American English
- Arcella DNA was sequenced.
- An arcella fossil was found.
Usage
Meaning in Context
Business
Not used.
Academic
Used in biology, microbiology, ecology, and paleolimnology research papers and textbooks.
Everyday
Virtually never used.
Technical
Core term in protistology and micropaleontology for classifying certain amoebae.
Vocabulary
Synonyms of “arcella”
Strong
Neutral
Vocabulary
Antonyms of “arcella”
Watch out
Common Mistakes When Using “arcella”
- Using it as a common noun for any amoeba.
- Incorrect pluralization (e.g., 'arcellas' is acceptable but 'arcellae' is the Latin plural).
- Mispronouncing with a soft 'c' (/s/ instead of /k/).
FAQ
Frequently Asked Questions
No, it is a highly specialized scientific term used almost exclusively in biology and related fields.
No, 'arcella' is singular. The plural can be 'arcellas' (anglicized) or 'arcellae' (Latin plural).
Its defining feature is a self-secreted, protective shell (or test), typically with a single opening through which it extends its pseudopodia.
Arcella species are used as bioindicators in ecological and paleoenvironmental studies because their presence and shell composition reflect specific water quality conditions.
A type of testate (shelled) amoeba belonging to the genus Arcella, characterized by a discoid or hemispherical shell with a central aperture.
Arcella is usually scientific / technical / academic (biology, microbiology) in register.
Arcella: in British English it is pronounced /ɑːˈsɛlə/, and in American English it is pronounced /ɑːrˈsɛlə/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of 'arc' (like its arched shell) + 'ella' (a small, elegant thing). 'A small arched-cell' living in water.
Conceptual Metaphor
N/A for this highly technical term.
Practice
Quiz
In which habitat are you most likely to find an arcella?