English Reference

Word

acidification

Phoneticsacid·i·fi·ca·tion

US/əˌsɪdəfəˈkeɪʃən/

UK/ɐsˌɪdɪfɪkˈeɪʃən/

Definition

n. the process of something becoming more acidic. This often describes how the ocean or soil changes when it absorbs too much carbon dioxide.

n. the process of becoming more acidic, typically through the absorption of carbon dioxide or the release of hydrogen ions. Often used in environmental science to describe oceanic or atmospheric changes.

Examples

“Ocean acidification is a major threat to coral reefs.”

“Scientists are studying how the acidification of soil affects the growth of local crops and the health of the surrounding forest.”

“The rapid acidification of the world's oceans has led to a significant decline in shellfish populations, as the lower pH levels make it difficult for them to form and maintain their calcium carbonate shells.”

Examples

simple

“Ocean acidification is a major threat to coral reefs.”

contextual

“Scientists are studying how the acidification of soil affects the growth of local crops and the health of the surrounding forest.”

complex

“The rapid acidification of the world's oceans has led to a significant decline in shellfish populations, as the lower pH levels make it difficult for them to form and maintain their calcium carbonate shells.”

Real-World Examples

“Repeated marine heat waves, coral bleaching, ocean acidification, pollution and other human pressures may further reduce the ability of reefs to produce and maintain their structures.”
Phys.org · 18 Aug 2026
“Scientists warn that this widespread deoxygenation is closely connected to other major planetary threats, including warming, pollution, biodiversity loss, and ocean acidification.”
ScienceDaily · 20 Jul 2026

Etymology

Borrowed from French acidification, equivalent to acid + -ification.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

acidNounacidificationNounacidityNoun

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

Scan code

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English Reference