| PN | of or relating to or using air (or a similar gas) |
|---|---|
| PN | large watertight chamber used for construction under water |
| PN | a power drill powered by compressed air |
| PN | a hammer driven by compressed air |
| PN | a tire made of reinforced rubber and filled with compressed air |
| PN | a tire made of reinforced rubber and filled with compressed air |
| PN | in a pneumatic manner |
| PN | the branch of mechanics that deals with the mechanical properties of gases |
| PN | of or derived from or caused by bacteria of the genus pneumococcus |
| PN | pneumonia caused by bacteria of the genus pneumococcus |
| PN | vaccine (trade name Pneumovax) effective against the 23 most common strains of pneumococcus |
| PN | bacterium causing pneumonia in mice and humans |