bioaccumulate: meaning, definition, pronunciation and examples
C1Technical/Scientific, Academic
Quick answer
What does “bioaccumulate” mean?
(Of a substance, especially a toxin) to gradually increase in concentration within the tissues of a living organism over time.
Audio
Pronunciation
Definition
Meaning and Definition
(Of a substance, especially a toxin) to gradually increase in concentration within the tissues of a living organism over time.
The biological process whereby substances enter an organism faster than they can be metabolized or excreted, leading to higher concentrations in the organism than in its surrounding environment. This often refers to persistent organic pollutants, heavy metals, or pesticides moving up the food chain.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or grammatical differences. Spelling remains consistent.
Connotations
Identical technical connotations in both varieties.
Frequency
Equally rare in general discourse but standard in scientific environmental and toxicological contexts in both regions.
Grammar
How to Use “bioaccumulate” in a Sentence
[Substance] bioaccumulates (in [organism/tissue])[Substance] is bioaccumulated (by [organism])Vocabulary
Collocations
Examples
Examples of “bioaccumulate” in a Sentence
verb
British English
- The research shows that DDT continues to bioaccumulate in estuary birds.
- These industrial chemicals are persistent and will bioaccumulate.
American English
- Studies confirm that PFAS bioaccumulate in human blood serum.
- The toxin bioaccumulates in the liver and kidneys.
adverb
British English
- [This form is exceedingly rare and not standard.]
American English
- [This form is exceedingly rare and not standard.]
adjective
British English
- The bioaccumulative potential of a substance is key to its risk assessment.
- They studied the bioaccumulative effects over decades.
American English
- Mercury is a bioaccumulative heavy metal of great concern.
- The compound's bioaccumulative properties were unknown.
Usage
Meaning in Context
Business
Rare, except in corporate environmental responsibility reports or risk assessments regarding chemical products.
Academic
Common in environmental science, ecology, toxicology, and public health research papers.
Everyday
Very rare. Might appear in news articles about pollution or food safety.
Technical
The primary register. Standard term in scientific descriptions of pollutant behavior and ecological risk.
Vocabulary
Synonyms of “bioaccumulate”
Strong
Neutral
Vocabulary
Antonyms of “bioaccumulate”
Watch out
Common Mistakes When Using “bioaccumulate”
- Using it transitively (*'The fish bioaccumulated mercury' is better as 'Mercury bioaccumulates in fish'). Confusing it with 'biodegrade' (which means to break down).
FAQ
Frequently Asked Questions
No, they are related but distinct. Bioaccumulation refers to the increase in concentration of a substance within a single organism over time. Biomagnification refers to the increase in concentration at each successive trophic level in a food chain.
Standard usage is intransitive (e.g., 'Mercury bioaccumulates'). However, in passive scientific writing, you may see 'The chemical is bioaccumulated by fish,' treating it as a transitive verb in the passive voice.
Lipid-soluble (fat-loving), persistent, and slowly metabolized substances. Examples include DDT, PCBs, dioxins, methylmercury, and some per- and polyfluoroalkyl substances (PFAS).
In common parlance, yes, it carries a negative connotation as it deals with harmful substances. In a strict biological sense, it is a neutral process, but it becomes a serious concern with toxic, man-made pollutants.
(Of a substance, especially a toxin) to gradually increase in concentration within the tissues of a living organism over time.
Bioaccumulate is usually technical/scientific, academic in register.
Bioaccumulate: in British English it is pronounced /ˌbaɪ.əʊ.əˈkjuː.mjə.leɪt/, and in American English it is pronounced /ˌbaɪ.oʊ.əˈkjuː.mjə.leɪt/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms for this technical term]”
Learning
Memory Aids
Mnemonic
Think: BIO (life) + ACCUMULATE (gather). 'Toxins ACCUMULATE in your BIOlogical tissues.'
Conceptual Metaphor
THE BODY IS A SPONGE/TRAP (for toxins).
Practice
Quiz
What is the primary context for the word 'bioaccumulate'?