Third person singular present tense of 'deair'; removes air from a substance.
From 'deair' (to remove air) plus the third-person singular suffix '-s' (from Old English 'ð'). Standard verb conjugation in English.
Every time a materials scientist or concrete technician 'deairs' their mixture, they're preventing microscopic weaknesses that could eventually cause catastrophic failure—precision in small details that matter hugely.
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