pleomorphism: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “pleomorphism” mean?
The existence of multiple distinct forms in a single organism, species, or crystal, often at different life stages or under different conditions.
Audio
Pronunciation
Definition
Meaning and Definition
The existence of multiple distinct forms in a single organism, species, or crystal, often at different life stages or under different conditions.
The property of a substance, especially a crystal, to crystallize in two or more forms. In broader contexts, it can describe the ability to exist in multiple forms or states.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or spelling. Usage is identical across scientific registers.
Connotations
Highly technical; carries no additional cultural connotations.
Frequency
Extremely low-frequency in general language, but standard within relevant scientific fields in both regions.
Grammar
How to Use “pleomorphism” in a Sentence
The [noun] exhibits pleomorphism.Pleomorphism of [noun] is common.Characterised by [adjective] pleomorphism.Vocabulary
Collocations
Examples
Examples of “pleomorphism” in a Sentence
verb
British English
- The bacterium pleomorphises under nutrient stress.
American English
- The bacteria pleomorphize in response to environmental cues.
adverb
British English
- The cells grew pleomorphically in the altered medium.
American English
- The tumour cells varied pleomorphically in size.
adjective
British English
- The pleomorphic nature of the pathogen complicates identification.
American English
- They observed a pleomorphic bacterial culture.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Central term in microbiology, pathology, and materials science.
Everyday
Not used in everyday conversation.
Technical
Precise term describing a key property in biology (e.g., bacterial phase variation) and chemistry (e.g., crystalline polymorphs).
Vocabulary
Synonyms of “pleomorphism”
Vocabulary
Antonyms of “pleomorphism”
Watch out
Common Mistakes When Using “pleomorphism”
- Misspelling as 'pleiomorphism' or 'pleamorphism'.
- Using it to mean simple 'change' without the implication of multiple, distinct forms.
- Incorrect stress: it is pleo-MOR-phism, not PLEO-morphism.
FAQ
Frequently Asked Questions
Polymorphism is a broader term for existing in multiple forms (common in genetics and computing). Pleomorphism often implies the *same* entity changing form over time or condition, particularly in microbiology and cytology.
No, it is a highly specialised scientific term not encountered in everyday English.
Only in highly metaphorical or poetic language. Its standard use is strictly for physical, often biological or crystalline, forms.
The adjective is 'pleomorphic'.
The existence of multiple distinct forms in a single organism, species, or crystal, often at different life stages or under different conditions.
Pleomorphism is usually technical/scientific in register.
Pleomorphism: in British English it is pronounced /ˌpliːə(ʊ)ˈmɔːfɪz(ə)m/, and in American English it is pronounced /ˌpliəˈmɔːrfɪzəm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms]”
Learning
Memory Aids
Mnemonic
Think: 'PLEO' like 'plethora' (many) + 'MORPH' (shape/form) = many shapes.
Conceptual Metaphor
SHAPE-SHIFTING (The organism is a shape-shifter, adopting different guises).
Practice
Quiz
In which field is 'pleomorphism' LEAST likely to be used?