the metabolic processes whereby certain organisms obtain energy from organic molecules; processes that take place in the cells and tissues during which energy is released and carbon dioxide is produced and absorbed by the blood to be transported to the lungs | the act of smoking tobacco or other substances |
the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation | (baseball) a pitch thrown with maximum velocity |
a single complete act of breathing in and out | tobacco leaves that have been made into a cylinder |
| street names for marijuana |
| something with no concrete substance |
| an indication of some hidden activity |
| a cloud of fine particles suspended in a gas |
| a hot vapor containing fine particles of carbon being produced by combustion |