To remove gases from a substance; to make something gas-free.
From de- (remove) + gas + -ify (suffix meaning 'to make or become'). This variant of 'degas' follows the productive -ify pattern common in English chemistry terms.
When scientists create new medicines as pills, they must degasify the coating material—otherwise microscopic air pockets would make pills crumbly and useless by the time they reach pharmacies.
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