| Noun | 1. | gas embolism - obstruction of the circulatory system caused by an air bubble as, e.g., accidentally during surgery or hypodermic injection or as a complication from scuba divingembolism - occlusion of a blood vessel by an embolus (a loose clot or air bubble or other particle) | |
| 2. | gas embolism - pain resulting from rapid change in pressure | |