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containment

kun-TAYN-munt /kənˈteɪnmənt/

nounB2IELTSTOEFL

formaltechnical

The action of keeping something harmful under control or within physical limits.

Implies active structural or tactical measures to stop the spreading of a dangerous substance or force.

The story behind the word. Derived from Latin 'continere' (to hold together), from 'com-' (together) and 'tenere' (to hold). In safety engineering, it evolved to signify stopping hazardous materials from dispersing.

Word relationships

confinement: Confinement often refers to detaining people or animals, while containment focuses on controlling hazards or spills.
restriction: Restriction applies broadly to rules or limits, not physical hazmat barriers.

release: Release implies allowing a substance to spill or flow freely.
dispersion: Dispersion is the spreading out of a substance over a wide area.

Commonly confused with

retention: Retention refers to storing fluid intentionally, while containment emphasizes stopping an active spill from expanding.

Word family

contain (verb): To keep within limits or hold inside.
container (noun): An object that holds materials.

Collocations

containment boom
secondary containment
containment zone
breach of containment

Example sentences

"Primary containment structures prevented radioactive steam from escaping into the surrounding environment." Nuclear emergency response
"Crews deployed floating booms to achieve containment of the oil slick near the shoreline." Environmental protection

Memory hook

CONTAIN-ment holds harmful substances inside a CONTAINER so they cannot spread. Keep danger in a box.

When not to use

Do not confuse with 'extinction' or 'elimination'; containment leaves the hazard present but restricted.

Fun facts

Secondary containment basins under fuel storage tanks are required by law to hold 110% of the largest tank's total volume.