melanism: meaning, definition, pronunciation and examples
C2Scientific / Technical / Academic
Quick answer
What does “melanism” mean?
An abnormally dark pigmentation of an organism's skin, fur, feathers, or cuticle, caused by a high concentration of melanin.
Audio
Pronunciation
Definition
Meaning and Definition
An abnormally dark pigmentation of an organism's skin, fur, feathers, or cuticle, caused by a high concentration of melanin.
In biology and ecology, the condition or trait of dark coloration. In a broader cultural context, it can sometimes be used metaphorically to describe a darkening or somber quality.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or usage differences. The term is identically used in scientific contexts.
Connotations
Purely scientific/technical. No regional connotative differences.
Frequency
Extremely low frequency in general language, used almost exclusively in scientific literature in both regions.
Grammar
How to Use “melanism” in a Sentence
[noun] exhibits melanismmelanism in [species]the evolution of melanismcaused by melanismVocabulary
Collocations
Examples
Examples of “melanism” in a Sentence
adjective
British English
- The melanistic leopard was almost invisible in the shadows.
- Researchers tracked the spread of the melanistic gene.
American English
- The melanistic squirrel is a common sight on some campuses.
- Melanistic forms have a survival advantage in certain environments.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Used in biological sciences, ecology, and evolutionary studies.
Everyday
Extremely rare; would only be used by enthusiasts discussing animal coloration.
Technical
Core term in zoology, genetics, and evolutionary biology.
Vocabulary
Synonyms of “melanism”
Neutral
Weak
Vocabulary
Antonyms of “melanism”
Watch out
Common Mistakes When Using “melanism”
- Pronouncing it as /mɪˈlænɪzəm/ (incorrect stress).
- Using it as a general synonym for 'darkness' outside biological contexts.
- Confusing it with 'melanoma' (a cancer).
FAQ
Frequently Asked Questions
In biology, it specifically refers to an increased deposition of the pigment melanin, which often results in black or very dark brown coloration, but it is a scientific term for the trait, not a general colour description.
While humans have varying levels of melanin that determine skin tone, the term 'melanism' is not typically used in human medicine. Conditions involving excessive melanin are usually termed 'hyperpigmentation'.
Industrial melanism in the peppered moth (Biston betularia) during the Industrial Revolution in Britain is the textbook example of natural selection, where dark-colored moths became more common in soot-polluted areas.
Yes, a black panther is not a separate species but a leopard or jaguar exhibiting melanism, where their typical spotted pattern is obscured by dark fur.
An abnormally dark pigmentation of an organism's skin, fur, feathers, or cuticle, caused by a high concentration of melanin.
Melanism is usually scientific / technical / academic in register.
Melanism: in British English it is pronounced /ˈmɛlənɪz(ə)m/, and in American English it is pronounced /ˈmɛləˌnɪzəm/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of a MELAN-oma (a dark skin cancer) and -ISM (a condition). Melanism is the 'condition of being dark'.
Conceptual Metaphor
DARKNESS AS DOMINANCE (e.g., in industrial melanism, the dark form became dominant in polluted areas).
Practice
Quiz
Melanism is most closely associated with which of the following?