- 1. a. So tightly fitted as to preclude the escape of gas; impervious to gas. Source: opted
- 2. So tightly fitted as to preclude the escape of gas; impervious to gas. Source: webster
- 3. So tightly fitted as to preclude the escape of gas; imperviousto gas. Source: adambom
- 4. a. So tightly fitted as to preclude the escape of gas; impervious to gas. Source: ecdict
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