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Vocabulary Builder — Essay & Answer Writing

Cavitation

noun / kav-ih-TAY-shun / Hard
Meaning

The formation and collapse of vapour bubbles in a liquid due to rapid pressure changes, causing noise, vibration, and structural damage to surfaces

Origin / Etymology

Latin cavitas (hollow) — from cavus (cave, hollow)

Synonyms
Bubble collapse Vapour implosion
Antonyms
Laminar flow Smooth operation
Example Sentence
"The Large Cavitation Tunnel at NSTL, Visakhapatnam will enable India to design quieter submarine propellers by studying cavitation patterns — the primary source of acoustic signature that enemy sonar uses to detect submarines."
🎯 UPSC Usage

Used in defence/science contexts. Cavitation is critical to submarine stealth — noisy propellers create detectable acoustic signatures. NSTL's cavitation tunnel enables indigenous propeller design without foreign testing. Also relevant in hydropower (turbine damage) and biomedical engineering.

Relevant Subjects
Science Tech Security Defence
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