megadrought: meaning, definition, pronunciation and examples
LowFormal, Academic, Technical, Journalistic
Quick answer
What does “megadrought” mean?
A prolonged and severe drought lasting for decades or centuries, significantly exceeding the duration and intensity of typical droughts.
Audio
Pronunciation
Definition
Meaning and Definition
A prolonged and severe drought lasting for decades or centuries, significantly exceeding the duration and intensity of typical droughts.
A climatic event characterized by extreme, multi-decadal aridity that can cause profound ecological, agricultural, and societal disruption. In modern discourse, it is often discussed in the context of anthropogenic climate change and its potential to exacerbate or trigger such events.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or spelling differences. Usage is consistent across both varieties, primarily in scientific and news media contexts.
Connotations
Carries strong connotations of climate crisis, historical precedent (e.g., referring to past events in the geological record), and future risk in both varieties.
Frequency
Equally low frequency in both UK and US English, spiking in usage during major drought reports or climate discussions.
Grammar
How to Use “megadrought” in a Sentence
[Region/Area] + experience/enter/face + a megadroughtA megadrought + last/plague + [Region] for + [Duration]Scientists + warn of/predict + a megadroughtVocabulary
Collocations
Examples
Examples of “megadrought” in a Sentence
verb
British English
- The region is predicted to megadrought within the century. (rare, non-standard)
American English
- The models show the Southwest may megadrought again. (rare, non-standard)
adverb
British English
- [Not used as an adverb]
American English
- [Not used as an adverb]
adjective
British English
- Researchers identified a megadrought period in the medieval climate record.
American English
- The state is developing a megadrought resilience plan.
Usage
Meaning in Context
Business
Used in risk assessment reports, agricultural sector analysis, and water resource management planning.
Academic
Frequently used in climatology, geology, archaeology, and environmental science papers to describe past or modelled future climatic events.
Everyday
Rare in casual conversation. May appear in news headlines or documentaries about climate change.
Technical
A precise term in paleoclimatology denoting droughts lasting two decades or longer, with specific soil moisture or precipitation thresholds.
Vocabulary
Synonyms of “megadrought”
Strong
Neutral
Weak
Vocabulary
Antonyms of “megadrought”
Watch out
Common Mistakes When Using “megadrought”
- Using it to describe a single, very dry year (incorrect – requires multi-decadal scale).
- Misspelling as 'mega-drought' (while sometimes seen, the solid form 'megadrought' is standard in scientific literature).
FAQ
Frequently Asked Questions
While definitions can vary, in climatology, a megadrought is generally considered a prolonged drought lasting two decades or longer.
The term gained prominence in the late 20th and early 21st centuries with advances in paleoclimatology and increased concern about anthropogenic climate change, though the concept of ancient, prolonged droughts is old.
Yes, paleoclimatic records show they have occurred naturally in the past. Climate scientists warn that human-induced global warming can increase the likelihood, severity, and duration of such events in the future.
A drought is a temporary reduction in water availability. A megadrought is a shift to a persistently arid climate regime that lasts for generations, encompassing many severe drought events within it.
A prolonged and severe drought lasting for decades or centuries, significantly exceeding the duration and intensity of typical droughts.
Megadrought is usually formal, academic, technical, journalistic in register.
Megadrought: in British English it is pronounced /ˈmɛɡəˌdraʊt/, and in American English it is pronounced /ˈmɛɡəˌdraʊt/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms specific to 'megadrought'. It is itself a technical term.]”
Learning
Memory Aids
Mnemonic
Think of a MEGA-sized DROUGHT – not just a few dry years, but a drought so huge it defines an era.
Conceptual Metaphor
A MEGADROUGHT IS A CLIMATIC SIEGE (lasting decades, crippling resources) / A MEGADROUGHT IS A DEEP SCAR ON THE LANDSCAPE (long-lasting, transformative).
Practice
Quiz
What is the primary defining characteristic of a 'megadrought'?